问题 选择题

I tried to persuade him to give up the foolish idea, but in ________, and now he begins to regret.

A.vain

B.turn

C.return

D.case

答案

答案:A

in vain意为“徒劳地”;in turn意为“依次,轮流”;in return意为“作为回报”;in case意为“万一,以防”。根据句意“我原来极力劝他放弃那个愚蠢的想法,他不听,现在他却开始后悔了”可知,答案为A。

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