Set 16: Boundaries

Explanation

Answer: D

PASSAGE

The specimen, which was remarkably preserved, _______ recently.

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

A. been discovered

B. discovering

C. were discovered

D. was discovered✓ Correct

Detailed Answer Explanation

The correct answer is 'was discovered' because of the rule: passive voice agreement.

Why others are wrong: A ('been discovered' violates the grammatical rule: passive voice agreement.), B ('discovering' violates the grammatical rule: passive voice agreement.), C ('were discovered' violates the grammatical rule: passive voice agreement.).

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