23rd Day ATI TEAS Version 7-style Grammar & Usage practice set (50 questions) exactly as requested:

 23rd Day 

ATI TEAS Version 7-style Grammar & Usage practice set (50 questions) exactly as requested:

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Parts of Speech (Questions 1–25)

1.      In the sentence, The nurse carefully checked the patient’s vital signs, which word is an adverb?
A. nurse
B. carefully
C. patient’s
D. vital

2.      Which word in the following sentence is a preposition?
The surgical instruments are stored in the sterile cabinet.
A. surgical
B. are
C. in
D. cabinet

3.      Identify the pronoun in this sentence:
She administered the medication before breakfast.
A. administered
B. medication
C. She
D. breakfast

4.      Which word functions as a conjunction?
A. quickly
B. and
C. hospital
D. under

5.      In the sentence, The elderly patient felt weak but refused assistance, the word but is a:
A. preposition
B. adverb
C. conjunction
D. interjection

6.      Which underlined word is a verb?
A. The lab report was normal.
B. The patient slept peacefully.
C. A high fever can be dangerous.
D. The second dose is due at 6 PM.

7.      Choose the adjective in the sentence:
The technician used a sterile needle.
A. technician
B. used
C. sterile
D. needle

8.      Which word is an interjection?
A. Wow
B. Running
C. Slowly
D. Into

9.      In the sentence, The dosage was calculated incorrectly, the word incorrectly is an:
A. adjective
B. noun
C. adverb
D. conjunction

10. Identify the proper noun:
A. doctor
B. hospital
C. Mayo Clinic
D. medication

11. Which word is a first-person singular pronoun?
A. they
B. we
C. I
D. she

12. In the sentence, The therapist will call you after lunch, the word after is a:
A. conjunction
B. preposition
C. adverb
D. interjection

13. Choose the abstract noun:
A. stethoscope
B. compassion
C. nurse
D. tablet

14. Which word is a demonstrative pronoun?
A. someone
B. this
C. who
D. myself

15. In the sentence, The patient walked slowly to the examination room, the word slowly modifies:
A. patient
B. walked
C. examination
D. room

16. Identify the action verb:
A. is
B. seems
C. becomes
D. injects

17. Which sentence contains a collective noun?
A. The team finished the assessment.
B. The nurse documented the findings.
C. The pill was tiny.
D. The doctor wrote a note.

18. In the sentence, Oh no, the IV line is blocked, the words Oh no represent a(n):
A. conjunction
B. interjection
C. adverb
D. preposition

19. Which word is a relative pronoun?
A. it
B. which
C. some
D. each

20. Choose the linking verb:
A. run
B. appear
C. jump
D. calculate

21. In the sentence, Place the dressing over the wound, the word over is a:
A. conjunction
B. interjection
C. preposition
D. adverb

22. Which word is a reflexive pronoun?
A. herself
B. she
C. her
D. it

23. Identify the coordinating conjunction:
A. because
B. although
C. nor
D. unless

24. In the sentence, This is the patient whose chart was lost, the word whose is a:
A. possessive pronoun
B. personal pronoun
C. reflexive pronoun
D. demonstrative pronoun

25. Which word is a concrete noun?
A. happiness
B. syringe
C. courage
D. knowledge

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Subject–Verb Agreement (Questions 26–50)

26. Choose the correct verb:
The nurse along with the two assistants _____ present during the procedure.
A. were
B. was
C. are
D. have

27. Select the correct sentence:
A. Each of the patients have a copy of the consent form.
B. Each of the patients has a copy of the consent form.
C. Each of the patients are having a copy.
D. Each of the patients were given a copy.

28. The team of surgeons _____ to begin the operation.
A. is ready
B. are ready
C. were ready
D. have ready

29. Which sentence is correct?
A. Neither the doctor nor the nurses agrees with the diagnosis.
B. Neither the doctor nor the nurses agree with the diagnosis.
C. Neither the doctor nor the nurses is agreeing.
D. Neither the doctor nor the nurses has agreed.

30. Fifteen minutes _____ not enough time for a complete assessment.
A. are
B. were
C. is
D. have

31. Every one of the vials _____ labeled correctly.
A. were
B. are
C. have been
D. was

32. Choose the correct verb:
The committee _____ debating the new policy right now.
A. is
B. are
C. were
D. have

33. Either the charge nurse or the unit clerks _____ responsible for the schedule.
A. is
B. are
C. were
D. have

34. Which sentence follows subject-verb agreement?
A. There is several factors to consider.
B. There are several factors to consider.
C. There is several factor to consider.
D. There be several factors.

35. Mathematics _____ my favorite subject in nursing school.
A. are
B. were
C. is
D. have been

36. The scissors _____ on the sterile field.
A. is
B. was
C. are
D. has

37. None of the medication _____ left in the vial.
A. are
B. were
C. is
D. have

38. The staff _____ unanimously decided to implement the new protocol.
A. has
B. have
C. are
D. were

39. Which sentence is correct?
A. The patient, along with her family, request a second opinion.
B. The patient, along with her family, requests a second opinion.
C. The patient, along with her family, are requesting.
D. The patient, along with her family, were requesting.

40. Ten milligrams _____ the standard dose for this medication.
A. are
B. have
C. were
D. is

41. Everyone in the waiting room _____ asked to wear a mask.
A. were
B. are
C. have been
D. was

42. The number of adverse events _____ increased this quarter.
A. have
B. are
C. has
D. were

43. A number of patients _____ waiting for their lab results.
A. is
B. was
C. are
D. has

44. The police _____ investigating the cause of the incident.
A. is
B. are
C. was
D. has

45. Choose the correct verb:
There _____ a variety of treatments available.
A. is
B. are
C. has
D. was

46. The nurse and the social worker _____ to meet with the family.
A. plans
B. plan
C. is planning
D. has planned

47. Physics _____ required for admission to many nursing programs.
A. are
B. have been
C. were
D. is

48. Half of the tablets _____ been crushed for the feeding tube.
A. has
B. have
C. is
D. was

49. Which sentence has correct subject-verb agreement?
A. The group of nursing students study every evening.
B. The group of nursing students studies every evening.
C. The group of nursing students are studying.
D. The group of nursing students were studying.

50. Measles _____ a serious illness for unvaccinated individuals.
A. remain
B. are remaining
C. is
D. were

 

Here are the answers with short reasons (ATI TEAS style):

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Parts of Speech (1–25)

1.      B – “carefully” modifies verb → adverb

2.      C – “in” shows relationship → preposition

3.      C – “She” replaces noun → pronoun

4.      B – “and” connects words → conjunction

5.      C – “but” joins ideas → conjunction

6.      B – “slept” shows action → verb

7.      C – “sterile” describes noun → adjective

8.      A – “Wow” shows emotion → interjection

9.      C – “incorrectly” modifies verb → adverb

10. C – “Mayo Clinic” is specific name → proper noun

11. C – “I” is 1st person singular pronoun

12. B – “after” shows relation → preposition

13. B – “compassion” = feeling → abstract noun

14. B – “this” points out noun → demonstrative pronoun

15. B – “slowly” modifies verb “walked”

16. D – “injects” is action verb

17. A – “team” = collective noun

18. B – “Oh no” expresses emotion → interjection

19. B – “which” introduces clause → relative pronoun

20. B – “appear” links subject to description

21. C – “over” shows position → preposition

22. A – “herself” reflects subject → reflexive pronoun

23. C – “nor” is coordinating conjunction

24. A – “whose” shows possession → possessive pronoun

25. B – “syringe” is physical object → concrete noun

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Subject–Verb Agreement (26–50)

26. B – “along with” doesn’t change singular subject → was

27. B – “Each” is singular → has

28. A – “team” = singular collective noun

29. B – “nurses” (closest subject) → agree (plural verb)

30. C – “minutes” here = singular unit → is

31. D – “Every one” = singular → was

32. A – “committee” = singular collective noun

33. B – “clerks” (closest subject plural) → are

34. B – correct plural verb “are”

35. C – “Mathematics” = singular subject

36. C – “scissors” = plural noun

37. C – “None” treated singular → is

38. B – “staff” usually plural meaning → have

39. B – main subject “patient” singular → requests

40. D – “milligrams” treated as unit → is

41. D – “Everyone” = singular → was

42. C – “number” = singular → has

43. C – “A number of” = plural → are

44. B – “police” = plural noun

45. A – “There is” used with singular noun phrase

46. B – compound subject → plural verb “plan”

47. D – “Physics” = singular subject

48. B – “Half of the tablets” = plural → have

49. B – collective noun “group” = singular → studies

50. C – “Measles” = singular disease name → is

 

23rd Day ATI TEAS Version 7 Practice: Comma Usage & Standard English

 23rd Day 

ATI TEAS Version 7 Practice: Comma Usage & Standard English

1. Comma in a Series

Question:
Which sentence correctly uses commas to separate items in a series?

A) For breakfast, Maria ate oatmeal a banana and a slice of toast.
B) For breakfast, Maria ate oatmeal, a banana, and a slice of toast.
C) For breakfast, Maria ate oatmeal, a banana and a slice of toast.
D) For breakfast Maria ate oatmeal, a banana, and a slice of toast.

Correct Answer: B
Explanation: Commas should separate three or more items in a series. Option B includes the optional but acceptable Oxford comma before "and."

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2. Compound Sentences (Comma + Coordinating Conjunction)

Question:
Choose the correctly punctuated compound sentence.

A) The lab results were inconclusive so the doctor ordered more tests.
B) The lab results were inconclusive, so the doctor ordered more tests.
C) The lab results were inconclusive so, the doctor ordered more tests.
D) The lab results were inconclusive; so the doctor ordered more tests.

Correct Answer: B
Explanation: A compound sentence joins two independent clauses with a comma followed by a coordinating conjunction (FANBOYS: for, and, nor, but, or, yet, so).

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3. Introductory Elements

Question:
Which sentence uses a comma correctly after an introductory element?

A) After the patient finished the medication, her symptoms improved significantly.
B) After the patient finished the medication her symptoms improved significantly.
C) After, the patient finished the medication her symptoms improved significantly.
D) After the patient, finished the medication her symptoms improved significantly.

Correct Answer: A
Explanation: Use a comma after an introductory phrase to separate it from the main clause.

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4. Nonessential Clauses (Extra Information)

Question:
Read the sentence:
Dr. Okonkwo who graduated from Johns Hopkins will lead the research team.
Where should commas be placed to correctly set off the nonessential clause?

A) Dr. Okonkwo, who graduated from Johns Hopkins, will lead the research team.
B) Dr. Okonkwo who graduated from Johns Hopkins, will lead the research team.
C) Dr. Okonkwo, who graduated from Johns Hopkins will lead the research team.
D) Dr. Okonkwo who graduated from Johns Hopkins will lead, the research team.

Correct Answer: A
Explanation: The clause is extra information, so it is set off with commas on both sides.

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5. Mixed Review: Spelling, Punctuation, Grammar

Question:
Which sentence follows all conventions of Standard English?

A) The nurse reccomended a low-sodium diet however the patient refused to comply.
B) The nurse recommended a low-sodium diet, however the patient refused to comply.
C) The nurse recommended a low-sodium diet; however, the patient refused to comply.
D) The nurse recommended a low-sodium diet however, the patient refused to comply.

Correct Answer: C
Explanation: “However” is a conjunctive adverb and requires a semicolon before it and a comma after. “Recommended” is also spelled correctly.

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6. Comma with Nonessential Clause & Spelling

Question:
Select the correctly written sentence.

A) The medication which was prescribed off-label caused unexpected side effects.
B) The medication, which was prescribed off-label, caused unexpected side effects.
C) The medication which was prescribed off-label, caused unexpected side effects.
D) The medication which was prescribed off-label caused, unexpected side effects.

Correct Answer: B
Explanation: The clause is nonessential and requires commas on both sides.

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7. Comma Splice Error Recognition

Question:
Which sentence is a comma splice (incorrect)?

A) The patient arrived at 9 AM, and the receptionist checked her in immediately.
B) The patient arrived at 9 AM, the receptionist checked her in immediately.
C) The patient arrived at 9 AM; the receptionist checked her in immediately.
D) When the patient arrived at 9 AM, the receptionist checked her in immediately.

Correct Answer: B
Explanation: Two independent clauses are incorrectly joined with only a comma.

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8. Introductory Element + Spelling

Question:
Choose the correct sentence.

A) Before taking vital signs, the medical assistant sanitized her hands.
B) Before taking vital signs the medical assistant sanitized her hands.
C) Before takeing vital signs, the medical assistant sanitized her hands.
D) Before taking vital signs, the medical assistant sanitized, her hands.

Correct Answer: A
Explanation: Correct comma after introductory phrase and correct spelling of “taking.”

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9. Series & Nonessential Combined

Question:
Which sentence is punctuated correctly?

A) The lab tested for glucose, creatinine, and potassium which are all part of a basic metabolic panel.
B) The lab tested for glucose, creatinine, and potassium, which are all part of a basic metabolic panel.
C) The lab tested for glucose creatinine and potassium, which are all part of a basic metabolic panel.
D) The lab tested for glucose, creatinine and potassium which are all part of a basic metabolic panel.

Correct Answer: B
Explanation: Series commas + nonessential clause correctly set off.

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10. Compound Sentence vs. Run-on

Question:
Which sentence is correctly punctuated?

A) The surgeon finished the procedure she then wrote postoperative orders.
B) The surgeon finished the procedure, she then wrote postoperative orders.
C) The surgeon finished the procedure; she then wrote postoperative orders.
D) The surgeon finished the procedure, and then wrote postoperative orders.

Correct Answer: C
Explanation: Two independent clauses are correctly joined with a semicolon.

 

Conventions of Standard English — Commas Practice (50 Questions)

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Questions 1–10: Commas in a Series

1.      Which sentence uses commas correctly in a series?
A) For lunch I had soup a sandwich and an apple.
B) For lunch I had soup, a sandwich, and an apple.
C) For lunch I had soup, a sandwich and an apple.
D) For lunch I had soup a sandwich, and an apple.

2.      Choose the correct sentence.
A) The colors of the flag are red, white and blue.
B) The colors of the flag are red white and blue.
C) The colors of the flag are red, white, and blue.
D) The colors of the flag are red white, and blue.

3.      Which is correct?
A) She packed dresses, shoes, and jewelry for the trip.
B) She packed dresses shoes and jewelry for the trip.
C) She packed dresses, shoes and jewelry for the trip.
D) She packed dresses shoes, and jewelry for the trip.

4.      Select the correctly punctuated sentence.
A) He bought apples oranges and bananas.
B) He bought apples, oranges, and bananas.
C) He bought apples, oranges and bananas.
D) He bought apples oranges, and bananas.

5.      Which sentence is correct?
A) The bag contained a laptop, a notebook, and a pen.
B) The bag contained a laptop a notebook and a pen.
C) The bag contained a laptop, a notebook and a pen.
D) The bag contained a laptop a notebook, and a pen.

6.      Choose the correct version.
A) The recipe calls for eggs milk and butter.
B) The recipe calls for eggs, milk and butter.
C) The recipe calls for eggs, milk, and butter.
D) The recipe calls for eggs milk, and butter.

7.      Which is correctly punctuated?
A) She sings, dances, and acts professionally.
B) She sings dances and acts professionally.
C) She sings, dances and acts professionally.
D) She sings dances, and acts professionally.

8.      Select the correct sentence.
A) The museum features paintings, sculptures, and photographs.
B) The museum features paintings sculptures and photographs.
C) The museum features paintings, sculptures and photographs.
D) The museum features paintings sculptures, and photographs.

9.      Which is correct?
A) Her favorite subjects are math, science and history.
B) Her favorite subjects are math, science, and history.
C) Her favorite subjects are math science and history.
D) Her favorite subjects are math science, and history.

10. Choose the correctly punctuated sentence.
A) We need to buy bread cheese, and juice.
B) We need to buy bread, cheese and juice.
C) We need to buy bread, cheese, and juice.
D) We need to buy bread cheese and juice.

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Questions 11–20: Commas in Compound Sentences

11. Which sentence uses a comma correctly before a conjunction?
A) She was tired but she finished her work.
B) She was tired, but she finished her work.
C) She was tired but, she finished her work.
D) She was tired, but she finished, her work.

12. Choose the correct sentence.
A) You can stay here or you can leave now.
B) You can stay here, or you can leave now.
C) You can stay here or, you can leave now.
D) You can stay, here, or you can leave now.

13. Which is correct?
A) He studied hard so he passed the test.
B) He studied hard, so he passed the test.
C) He studied hard so, he passed the test.
D) He studied hard, so he passed, the test.

14. Select the correctly punctuated sentence.
A) I wanted to go but I was sick.
B) I wanted to go, but I was sick.
C) I wanted to go but, I was sick.
D) I wanted to go, but I was, sick.

15. Which sentence is correct?
A) The sun set, and the stars appeared.
B) The sun set and the stars appeared.
C) The sun set, and the stars, appeared.
D) The sun set and the stars, appeared.

16. Choose the correct version.
A) She loves reading, yet she rarely has time for it.
B) She loves reading yet she rarely has time for it.
C) She loves reading, yet she rarely has time, for it.
D) She loves reading yet, she rarely has time for it.

17. Which is correctly punctuated?
A) The door was locked so we entered through the window.
B) The door was locked, so we entered through the window.
C) The door was locked so, we entered through the window.
D) The door was locked, so we entered, through the window.

18. Select the correct sentence.
A) He didn't study for the exam, yet he passed.
B) He didn't study for the exam yet he passed.
C) He didn't study for the exam, yet he passed, easily.
D) He didn't study for the exam yet, he passed.

19. Which is correct?
A) You can take the bus, or you can walk.
B) You can take the bus or you can walk.
C) You can take the bus or, you can walk.
D) You can take, the bus, or you can walk.

20. Choose the correct compound sentence.
A) The phone rang but no one answered.
B) The phone rang, but no one answered.
C) The phone rang but, no one answered.
D) The phone rang, but no one, answered.

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Questions 21–30: Commas with Introductory Elements

21. Which sentence uses a comma correctly after an introductory element?
A) In the summer we go to the beach.
B) In the summer, we go to the beach.
C) In the summer we go, to the beach.
D) In, the summer we go to the beach.

22. Choose the correct sentence.
A) After the rain stopped the sun came out.
B) After the rain stopped, the sun came out.
C) After the rain, stopped the sun came out.
D) After the rain stopped the sun, came out.

23. Which is correct?
A) To be fair everyone got a turn.
B) To be fair, everyone got a turn.
C) To be, fair everyone got a turn.
D) To be fair everyone got, a turn.

24. Select the correctly punctuated sentence.
A) Before eating wash your hands.
B) Before eating, wash your hands.
C) Before, eating wash your hands.
D) Before eating wash, your hands.

25. Which sentence is correct?
A) Looking around she spotted her friend.
B) Looking around, she spotted her friend.
C) Looking, around she spotted her friend.
D) Looking around she spotted, her friend.

26. Choose the correct version.
A) By the time we arrived the movie had started.
B) By the time we arrived, the movie had started.
C) By the time, we arrived the movie had started.
D) By the time we arrived the movie, had started.

27. Which is correctly punctuated?
A) Honestly I don't know the answer.
B) Honestly, I don't know the answer.
C) Honestly I don't know, the answer.
D) Honestly I, don't know the answer.

28. Select the correct sentence.
A) Throughout the day the temperature dropped.
B) Throughout the day, the temperature dropped.
C) Throughout, the day the temperature dropped.
D) Throughout the day the temperature, dropped.

29. Which is correct?
A) Having said that I still agree with you.
B) Having said that, I still agree with you.
C) Having said, that I still agree with you.
D) Having said that I still agree, with you.

30. Choose the correct sentence with an introductory clause.
A) When the bell rings leave the room.
B) When the bell rings, leave the room.
C) When, the bell rings leave the room.
D) When the bell rings leave, the room.

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Questions 31–40: Commas with Nonessential Clauses

31. Which sentence uses commas correctly around a nonessential clause?
A) My aunt who lives in Florida is a pilot.
B) My aunt, who lives in Florida, is a pilot.
C) My aunt who lives in Florida, is a pilot.
D) My aunt, who lives in Florida is a pilot.

32. Choose the correct sentence.
A) Paris which is the capital of France is beautiful.
B) Paris, which is the capital of France, is beautiful.
C) Paris which is the capital of France, is beautiful.
D) Paris, which is the capital of France is beautiful.

33. Which is correct (assume nonessential)?
A) My grandfather's car which is very old still runs well.
B) My grandfather's car, which is very old, still runs well.
C) My grandfather's car which is very old, still runs well.
D) My grandfather's car, which is very old still runs well.

34. Select the correctly punctuated sentence.
A) Mr. Jones our neighbor mows his lawn every Sunday.
B) Mr. Jones, our neighbor, mows his lawn every Sunday.
C) Mr. Jones our neighbor, mows his lawn every Sunday.
D) Mr. Jones, our neighbor mows his lawn every Sunday.

35. Which sentence is correct?
A) The book that I borrowed from the library is due tomorrow.
B) The book, that I borrowed from the library, is due tomorrow.
C) The book that I borrowed from the library, is due tomorrow.
D) The book, that I borrowed from the library is due tomorrow.

36. Choose the correct version (nonessential).
A) The scientist who discovered the element won a prize.
B) The scientist, who discovered the element, won a prize.
C) The scientist who discovered the element, won a prize.
D) The scientist, who discovered the element won a prize.

37. Which is correctly punctuated (nonessential)?
A) Lake Michigan which is one of the Great Lakes has many beaches.
B) Lake Michigan, which is one of the Great Lakes, has many beaches.
C) Lake Michigan which is one of the Great Lakes, has many beaches.
D) Lake Michigan, which is one of the Great Lakes has many beaches.

38. Select the correct sentence.
A) My best friend Sarah is coming to visit.
B) My best friend, Sarah, is coming to visit.
C) My best friend Sarah, is coming to visit.
D) My best friend, Sarah is coming to visit.

39. Which is correct?
A) The painting that hangs in the hallway was painted by my uncle.
B) The painting, that hangs in the hallway, was painted by my uncle.
C) The painting that hangs in the hallway, was painted by my uncle.
D) The painting, that hangs in the hallway was painted by my uncle.

40. Choose the correct sentence with a nonessential appositive.
A) The author of the article Dr. Lee was interviewed.
B) The author of the article, Dr. Lee, was interviewed.
C) The author of the article Dr. Lee, was interviewed.
D) The author of the article, Dr. Lee was interviewed.

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Questions 41–50: Mixed Comma Rules

41. Which sentence uses all commas correctly?
A) After the movie, we went to a cafe, and ordered coffee.
B) After the movie we went to a cafe and ordered coffee.
C) After the movie, we went to a cafe and ordered coffee.
D) After the movie we went to a cafe, and ordered coffee.

42. Select the correctly punctuated sentence.
A) My neighbor who is a teacher, speaks three languages, and travels often.
B) My neighbor, who is a teacher, speaks three languages and travels often.
C) My neighbor who is a teacher speaks three languages, and travels often.
D) My neighbor, who is a teacher speaks three languages and travels often.

43. Which is correct?
A) I was hungry but the fridge was empty, so I ordered pizza.
B) I was hungry, but the fridge was empty so I ordered pizza.
C) I was hungry, but the fridge was empty, so I ordered pizza.
D) I was hungry but the fridge was empty so I ordered pizza.

44. Choose the correct sentence.
A) Before the test, review your notes, textbook, and practice problems.
B) Before the test review your notes, textbook, and practice problems.
C) Before the test, review your notes textbook and practice problems.
D) Before the test review your notes, textbook and practice problems.

45. Which sentence is punctuated correctly?
A) The student who won the award, gave a speech, and thanked her parents.
B) The student, who won the award, gave a speech and thanked her parents.
C) The student who won the award gave a speech, and thanked her parents.
D) The student, who won the award gave a speech and thanked her parents.

46. Select the correct version.
A) For instance you could try running swimming or cycling.
B) For instance, you could try running, swimming, or cycling.
C) For instance you could try running, swimming, or cycling.
D) For instance, you could try running swimming or cycling.

47. Which is correct?
A) I finished my homework, but I forgot to submit it, so I lost points.
B) I finished my homework but I forgot to submit it so I lost points.
C) I finished my homework, but I forgot to submit it so I lost points.
D) I finished my homework but I forgot to submit it, so I lost points.

48. Choose the correctly punctuated sentence.
A) The hotel which is downtown, offers free breakfast, and has a pool.
B) The hotel, which is downtown, offers free breakfast and has a pool.
C) The hotel which is downtown offers free breakfast, and has a pool.
D) The hotel, which is downtown offers free breakfast and has a pool.

49. Which sentence uses commas correctly?
A) At the end of a long week, I like to relax, watch a movie, and order takeout.
B) At the end of a long week I like to relax, watch a movie, and order takeout.
C) At the end of a long week, I like to relax watch a movie and order takeout.
D) At the end of a long week I like to relax, watch a movie and order takeout.

50. Select the correct sentence.
A) Her latest novel which took three years to finish, was finally published in May, but I haven't bought it yet.
B) Her latest novel, which took three years to finish, was finally published in May but I haven't bought it yet.
C) Her latest novel, which took three years to finish, was finally published in May, but I haven't bought it yet.
D) Her latest novel which took three years to finish was finally published in May but I haven't bought it yet.

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Here are the answers with numbers included exactly as requested:

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Questions 1–10: Commas in a Series

1.      B – Correct series: soup, a sandwich, and an apple (Oxford comma).

2.      C – Correct series: red, white, and blue.

3.      A – Correct series: dresses, shoes, and jewelry.

4.      B – Correct series: apples, oranges, and bananas.

5.      A – Correct series: a laptop, a notebook, and a pen.

6.      C – Correct series: eggs, milk, and butter.

7.      A – Correct series: sings, dances, and acts.

8.      A – Correct series: paintings, sculptures, and photographs.

9.      B – Correct series: math, science, and history.

10. C – Correct series: bread, cheese, and juice.

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Questions 11–20: Commas in Compound Sentences

11. B – Comma before but joining two independent clauses.

12. B – Comma before or joining two independent clauses.

13. B – Comma before so joining two independent clauses.

14. B – Comma before but joining two independent clauses.

15. A – Comma before and joining two independent clauses.

16. A – Comma before yet joining two independent clauses.

17. B – Comma before so joining two independent clauses.

18. A – Comma before yet joining two independent clauses.

19. A – Comma before or joining two independent clauses.

20. B – Comma before but joining two independent clauses.

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Questions 21–30: Commas with Introductory Elements

21. B – Comma after introductory phrase In the summer.

22. B – Comma after introductory clause After the rain stopped.

23. B – Comma after introductory phrase To be fair.

24. B – Comma after introductory phrase Before eating.

25. B – Comma after introductory participle Looking around.

26. B – Comma after introductory phrase By the time we arrived.

27. B – Comma after introductory adverb Honestly.

28. B – Comma after introductory phrase Throughout the day.

29. B – Comma after introductory phrase Having said that.

30. B – Comma after introductory clause When the bell rings.

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Questions 31–40: Commas with Nonessential Clauses

31. B – Nonessential who lives in Florida needs commas both sides.

32. B – Nonessential which is the capital of France needs commas both sides.

33. B – Nonessential which is very old needs commas both sides.

34. B – Nonessential appositive our neighbor needs commas both sides.

35. A – That I borrowed is essential (restrictive) → no commas.

36. B – Nonessential who discovered the element needs commas both sides.

37. B – Nonessential which is one of the Great Lakes needs commas both sides.

38. B – Nonessential appositive Sarah needs commas both sides.

39. A – That hangs in the hallway is essential → no commas.

40. B – Nonessential appositive Dr. Lee needs commas both sides.

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Questions 41–50: Mixed Comma Rules

41. C – Introductory comma after After the movie; no extra comma before and ordered.

42. B – Nonessential who is a teacher needs commas; no comma before and travels.

43. C – Comma before but and before so (two compound joins).

44. A – Introductory comma + series commas.

45. B – Nonessential who won the award needs commas; no comma before and thanked.

46. B – Introductory For instance + series commas.

47. A – Comma before but and before so in compound sentence.

48. B – Nonessential which is downtown needs commas; no comma before and has.

49. A – Introductory comma + series commas.

50. C – Nonessential which took three years to finish + compound comma before but.