Choose the option that correctly replaces the underlined phrase in the sentence below.
All the staff in the research facility—including the lead scientist and the __lab assistants, rushed__ to the exit when the evacuation siren blared.
✅ Explanation: When an explanatory phrase is inserted into a sentence between the subject (‘staff’) and its main verb (‘rushed’), it should be properly set off by matching punctuation on both sides. In this case, two em dashes are required to symmetrically enclose the parenthetical information. A single comma is insufficient and creates an imbalance, while a colon or an apostrophe (‘assistants’’) would be grammatically inappropriate for this context.
2
Choose the option that correctly replaces the underlined phrase in the sentence below.
To __no ones surprise__, Amelia hadn’t finished her essay by the deadline.
✅ Explanation: The idiomatic expression ‘to no one’s surprise’ requires the possessive form of the indefinite pronoun ‘no one.’ The correct possessive is formed by adding an apostrophe and an ‘s’ (one’s). Other options incorrectly omit the apostrophe, add a hyphen, or use an incorrect plural/possessive form.
3
Choose the option that correctly replaces the underlined phrase in the sentence below.
If Maya __would have visited__ the art gallery, she might have appreciated abstract expressionism.
✅ Explanation: In a past unreal conditional sentence, the ‘if’ clause requires the past perfect tense (had + past participle). The structure ‘if + had + past participle, subject + would/could/might have + past participle’ correctly expresses a hypothetical situation in the past that did not occur. Using ‘would have visited’ or ‘could have visited’ in the ‘if’ clause is grammatically incorrect, and ‘would of visited’ is a common spoken error that misuses ‘of’ for ‘have’.
4
Choose the option that correctly replaces the underlined phrase in the sentence below.
After the tremor, overturned bookcases __were laying__ across the floor.
✅ Explanation: The verb ‘lie’ means ‘to recline’ or ‘to rest’ and is intransitive (it does not take a direct object). Its present participle form is ‘lying’. The verb ‘lay’ means ‘to place’ or ‘to put’ and is transitive (it requires a direct object). In this sentence, the bookcases are resting on the floor, not placing something else, so the correct form of ‘lie’ is needed. Since the subject ‘bookcases’ is plural, the past continuous ‘were lying’ is appropriate.
5
Choose the option that correctly replaces the underlined phrase in the sentence below.
Professor Evelyn Reed discussed in her seminal __work, “Foundations of Modern Ethics”,__ the principles of moral philosophy.
✅ Explanation: When a descriptive noun (like ‘work’) is immediately followed by its title in quotation marks, no punctuation is typically needed between the noun and the title itself. The comma after the title is appropriate because the title acts as an appositive within the sentence structure. Inserting an unnecessary comma, semicolon, or colon before the title is incorrect.
6
Choose the option that correctly replaces the underlined phrase in the sentence below.
The new city hall was hailed as “a marvel of architecture” by urban planners, __and, “a waste of taxpayer money,” by local residents.__
✅ Explanation: When integrating quoted phrases into a sentence, no extra punctuation (like commas or dashes) should typically be placed immediately before or after the quotation marks, unless dictated by the grammatical flow of the sentence itself. In this context, the word ‘and’ directly connects the two contrasting opinions, and the quotation marks already delineate the quoted phrases. The original sentence incorrectly uses a comma after ‘and’ and before ‘by local residents.’ Also, ‘its’’ is always incorrect; ‘its’ is the possessive pronoun.
7
Choose the option that correctly replaces the underlined phrase in the sentence below.
Researchers often describe this phenomenon as a ‘cognitive bias’ or ‘perceptual __error).’__
✅ Explanation: When a quoted phrase is part of a larger parenthetical expression that concludes a sentence, the closing quotation mark should come before the closing parenthesis. The sentence-ending punctuation (in this case, a period) should then follow the closing parenthesis. The incorrect placement of the period before the parenthesis in the original sentence creates an improper grammatical structure.
8
Choose the option that correctly replaces the underlined phrase in the sentence below.
The book club recently completed __discussing—’The Alchemist’,__ a novel by Paulo Coelho.
✅ Explanation: When a literary title, such as a novel or short story, is mentioned within a sentence, it should be enclosed in quotation marks (for short stories/poems) or italicized (for novels/books). For titles in quotation marks, any comma or period that grammatically follows the title in the sentence should be placed *inside* the closing quotation mark. The dash before the title is unnecessary, disrupting the flow of the sentence.
9
Choose the option that correctly replaces the underlined phrase in the sentence below.
After the intricate clock was fixed, it kept time __accurate__.
✅ Explanation: The word ‘accurate’ is an adjective, but it is attempting to modify the verb phrase ‘kept time.’ Verbs must be modified by adverbs, which describe how an action is performed. The adverbial form of ‘accurate’ is ‘accurately.’ Therefore, the clock kept time ‘accurately,’ describing the manner in which it performed the action of keeping time.
10
Choose the option that correctly replaces the underlined phrase in the sentence below.
__”Are there two C’s in ‘accelerate’,” asked Clara?__
✅ Explanation: When reporting a direct question, the question mark belongs inside the quotation marks if the quoted material itself is a question. The sentence-ending punctuation should then reflect the overall sentence structure (which, in this case, is a statement that Clara asked something, not a question about Clara). Additionally, while ‘C’s’ is sometimes used for clarity, ‘Cs’ is the more standard way to pluralize a single letter without implying possession, especially in academic or formal writing.
