SAT Grammar and Punctuation Practice Flashcards

Which version of the underlined portion best completes the sentence? "The committee's decision to postpone the vote, ______ many had anticipated, sparked immediate controversy among the delegates." A) which B) that C) whom D) what

Answer: which

"Which" is correct here because the clause introduced is a non-restrictive (parenthetical) relative clause — it adds supplementary information about the decision and is set off by commas. "That" introduces restrictive clauses and cannot be used with commas in this construction. "Whom" refers to people, not events. "What" would create a grammatically incoherent structure.

A student writes: "Neither the CEO nor the board members was informed of the audit's findings." Which revision is needed? A) Change "was" to "were" B) Change "nor" to "or" C) Change "the board members" to "board members" D) No revision is needed

Answer: Change "was" to "were"

With "neither…nor" constructions, the verb agrees with the subject closest to it (the proximity rule). Since "the board members" is the nearer subject and is plural, the verb must be "were," not "was." This is a subtle exception to standard subject-verb agreement and trips up many test-takers.

Read the following sentence: "The scientist's groundbreaking research — conducted over two decades and spanning multiple disciplines — has challenged long-held assumptions about cellular regeneration." If the em dashes were replaced with parentheses, how would the meaning change? A) The information would become less essential and more visually emphasized B) The information would carry less emphasis and feel more like a quiet aside C) The sentence would become grammatically incorrect D) The subject-verb relationship would be altered

Answer: The information would carry less emphasis and feel more like a quiet aside

Em dashes create strong emphasis and interrupt the sentence dramatically, drawing the reader's attention to the enclosed content. Parentheses, by contrast, signal that the enclosed information is supplementary and lower in priority — a quiet aside rather than an emphatic insertion. Both are grammatically valid here; the difference is rhetorical weight.

Which sentence uses a semicolon correctly? A) "She excelled in mathematics; however she struggled with verbal reasoning." B) "The experiment failed; because the temperature was too high." C) "Among the participants were Dr. Chen, a virologist; Ms. Okafor, an epidemiologist; and Dr. Reyes, a biochemist." D) "He arrived early; and left before the closing remarks."

Answer: "Among the participants were Dr. Chen, a virologist; Ms. Okafor, an epidemiologist; and Dr. Reyes, a biochemist."

Option C uses the semicolon correctly as a "super-comma" in a complex list where individual items already contain commas. This prevents ambiguity about where one item ends and the next begins. Option A needs a comma after "however." Option B incorrectly places a semicolon before a subordinating conjunction ("because"). Option D misuses a semicolon before a coordinating conjunction joining two elements of the same clause.

"The philosopher argued that consciousness, rather than physical matter, ______ the fundamental substance of reality." Which verb form correctly completes the sentence? A) are B) is C) were D) have been

Answer: is

The subject of the verb is "consciousness" (singular), not "physical matter." The phrase "rather than physical matter" is a parenthetical comparison set off by commas — it does not change the grammatical subject or make it plural. This is a distractor designed to make "physical matter" seem like part of a compound subject, but it is not. The singular verb "is" is required.

A student revises a sentence by adding an apostrophe: "The 1990s' fashion trends have made a surprising comeback." Is the apostrophe used correctly? A) Yes — the apostrophe correctly shows possession by the decade. B) No — decades used as adjectives modifying nouns do not take apostrophes. C) No — the correct form is "1990's" with the apostrophe before the "s." D) Yes — plural nouns always require apostrophes when followed by nouns they describe.

Answer: Yes — the apostrophe correctly shows possession by the decade.

"The 1990s' fashion trends" is correctly punctuated. "1990s" is a plural noun (referring to the entire decade), and because it ends in "s," the possessive is formed by adding only an apostrophe after the "s" — yielding "1990s'." This indicates that the fashion trends belong to / originated in the 1990s. The common error is omitting the apostrophe entirely or placing it before the "s" as if it were singular.