【題目】I think ______necessary for us ______the endangered animals and plants.

A. it; protect B. its; to protect

C. it’s; protecting D. it; to protect

【答案】D

【解析】句意:我認為對我們來說保護瀕危滅絕的動植物是必要的。根據(jù)句型I think it+形容詞+for sb

to do sth“我認為做某事對于某人來說是……”,故選D。

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