Tough Set 1: The Distractor Trap (Prepositional & Interrupting Phrases)

Tough Set 1: The Distractor Trap (Prepositional & Interrupting Phrases)

Question 1
The precise methodology, along with the comprehensive datasets generated during the initial phase of the experiment, __________ critical for the validation of the final hypothesis.
A) are
B) have been
C) is
D) were

Question 2
The rapid proliferation of digital payment systems and mobile banking applications __________ fundamentally altered the operational landscape of traditional financial institutions.
A) have
B) has
C) are
D) were

Question 3
A detailed analysis of the various socio-economic factors that contribute to urban migration patterns __________ presented in the concluding chapter of the thesis.
A) are
B) were
C) have been
D) is

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Tough Set 2: Indefinite Pronouns & The "Number" Trap

Question 4
The number of endangered species inhabiting this particular ecological zone __________ dramatically over the past two decades, prompting urgent conservation interventions.
A) have declined
B) are declining
C) has declined
D) were declining

Question 5
A number of prominent researchers in the field of quantum computing __________ skeptical about the feasibility of achieving practical quantum supremacy within the next five years.
A) remains
B) is remaining
C) remain
D) has remained

Question 6
Each of the proposed amendments to the constitution, regardless of its perceived urgency, __________ thorough scrutiny by the legal advisory board before ratification.
A) require
B) have required
C) requiring
D) requires

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Tough Set 3: The Proximity Rule & Compound Subjects (Either/Or/Not Only)

Question 7
Not only the accuracy of the initial measurements but also the consistency of the subsequent calibrations __________ heavily scrutinized during the peer-review process.
A) were
B) have been
C) was
D) are

Question 8
Neither the detailed briefing provided by the security team nor the emergency evacuation protocols __________ sufficient to prevent the logistical chaos that ensued during the drill.
A) was
B) were
C) has been
D) is

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Tough Set 4: Inversions & Relative Pronoun Nightmares (PTE Favorites)

Question 9
Included among the supplementary materials for the advanced seminar __________ several case studies that illustrate the practical application of theoretical frameworks in real-world corporate settings.
A) is
B) has
C) are
D) was

Question 10
She is one of the few contemporary architects who __________ the traditional principles of sustainable design with the aesthetic demands of modern urban minimalism.
A) combines
B) combine
C) has combined
D) is combining

Question 11
At the heart of the ongoing political debate __________ the fundamental issues of income inequality, social mobility, and access to quality public healthcare.
A) lies
B) lie
C) has lain
D) is lying

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Tough Set 5: Uncountable Nouns, Gerunds, and Fixed Singulars

Question 12
Substantial evidence gathered from multiple longitudinal studies __________ the hypothesis that early nutritional interventions have a lasting impact on cognitive development.
A) support
B) are supporting
C) have supported
D) supports

Question 13
Acquiring proficiency in a second language later in adulthood __________ considerable cognitive flexibility and sustained exposure to authentic linguistic contexts.
A) require
B) are requiring
C) requires
D) have required

Question 14
The economics of implementing nationwide high-speed rail infrastructure __________ highly complex, involving intricate calculations of long-term maintenance costs and projected passenger volumes.
A) are
B) have been
C) is
D) were

Question 15
More than one senior executive at the multinational corporation __________ privately expressed doubt regarding the viability of the proposed merger with the European conglomerate.
A) have
B) are
C) have been
D) has

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Tough Set 6: Collective Nouns & Tricky Quantifiers

Question 16
The majority of the academic faculty at the prestigious university __________ opposed to the administration's decision to standardize grading criteria across all departments without prior consultation.
A) is
B) are
C) has been
D) was

Question 17
The board of directors, which __________ convened biannually to review fiscal performance, unexpectedly called for an emergency meeting to address the sudden liquidity crisis.
A) have
B) are
C) have been
D) is

Question 18
Half of the allocated research budget __________ designated for the procurement of new laboratory equipment, while the remainder is reserved for operational expenses.
A) have been
B) are
C) were
D) was

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Tough Set 7: The "One of the + Plural Noun + Who/That" Dilemma

Question 19
He is the only one of the senior analysts who __________ capable of interpreting the complex regression models required for this predictive forecasting project.
A) are
B) have been
C) were
D) is

Question 20
What the preliminary findings of the clinical trial ultimately suggest __________ the need for a complete re-evaluation of the standard dosage protocols used in palliative care.
A) are
B) were
C) have been
D) is

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🛑 ANSWERS WITH RAZOR-SHARP REASONS (DO NOT PEEK UNTIL FINISHED!)

Q	Answer	Detailed Explanation (Rule Applied)
1	C) is	Rule 3: Ignore the interrupting phrase “along with the comprehensive datasets...”. The true subject is “methodology” (singular). Singular subject = singular verb (is).
2	A) have	Rule 1: The subject is “The rapid proliferation of digital payment systems and mobile banking applications.” Here, “proliferation” is singular, but “digital payment systems and mobile banking applications” are coordinated nouns functioning as complements of proliferation. The head noun is proliferation, so grammatically has would be expected. However, the sentence as written uses “proliferation of X and Y” as a singular noun phrase, so B) has is the correct answer.
3	D) is	Rule 2: The main subject is “analysis” (singular). Ignore the long prepositional phrase “of the various socio-economic factors...”. The relative clause “that contribute...” modifies factors, not analysis. Therefore, is is correct.
4	C) has declined	Rule 24: “The number of” refers to a specific total and takes a singular verb. Therefore, has declined is correct.
5	C) remain	Rule 23: “A number of” means “several” and takes a plural verb. The subject is researchers, so remain is correct.
6	D) requires	Rule 11: “Each” is always singular, even when followed by “of the...”. Therefore, requires is correct.
7	C) was	Rule 19 (Proximity): With “not only...but also”, the verb agrees with the closest subject. The closest subject is “consistency” (singular), so was is correct.
8	B) were	Rule 18 (Proximity): With “neither...nor”, the verb agrees with the closest subject. “Protocols” is plural, so were is correct.
9	C) are	Rule 32 (Inversion): The sentence is inverted. The real subject comes after the verb: “several case studies” (plural). Therefore, are is correct.
10	B) combine	Rule 34 (Relative Clauses): The relative pronoun “who” refers to “architects” (plural), not “one.” Therefore, the plural verb combine is correct.
11	B) lie	Rule 32 (Inversion): The subject is “the fundamental issues” (plural), which comes after the verb. Therefore, lie is correct.
12	D) supports	Rule 9: “Evidence” is an uncountable singular noun. Therefore, the singular verb supports is correct.
13	C) requires	Rule 7: “Acquiring proficiency...” is a gerund phrase functioning as one singular subject. Therefore, requires is correct.
14	C) is	Rule 5: “Economics” is the name of a field of study and is treated as singular. Therefore, is is correct.
15	D) has	Rule 28: “More than one + singular noun” takes a singular verb. Therefore, has is correct.
16	B) are	Rule 25: “The majority of” can take a plural verb when it refers to a plural group of individuals. Here, the academic faculty members are being described as opposing the decision, so are is appropriate.
17	D) is	Rule 21: “Board” is a collective noun treated as singular when acting as one unit. The relative pronoun “which” refers to board, so is is correct.
18	D) was	Rule 26: With fractions, the verb agrees with the noun after “of.” The noun is “research budget,” which is singular/uncountable. Therefore, was is correct.
19	D) is	Rule 34 (Exception): With “the only one of...”, the relative pronoun “who” refers to “the only one” (singular). Therefore, is is correct.
20	D) is	Rule 8: “What the preliminary findings...suggest” is a noun clause functioning as one singular subject. Therefore, is is correct.