Digital PSAT Reading and Writing Practice Question 143: Answer and Explanation

Question: 143

The bat species whose diet doesn't consist of insects are frugivores, carnivores, or hematophagous. It is the latter bloodsuckers who attract the most attention. The ecological roles of bats _______ not end with pest control.

Which choice completes the text so that it conforms to the conventions of Standard English?

  • A. do
  • B. does
  • C. don't
  • D. do's

Correct Answer: A

Explanation:

(A) Do is numerically consistent with the plural subject "roles." Choice (B), does, is singular. Choice (C), don't, causes a double negative given the "not" that follows. Choice (D), do's, is not a word.

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