PSAT Writing and Language Question 655: Answer and Explanation

Question: 655

  • A. NO CHANGE
  • B. was
  • C. are
  • D. is

Correct Answer: B

Explanation:

(B) Notice the other verbs in this paragraph. They are in the past tense. So stay in the past tense to preserve parallelism. Eliminate choices (C) and (D) because they are in the present tense. The subject is "discovery," which is a singular noun that requires a singular verb. "Were" is a plural verb; eliminate it accordingly. "Was" is the best answer.

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