I don’t know whether you happen ____ it, but I’m going to study in the U.S.A. this September. A. to

题目简介

I don’t know whether you happen ____ it, but I’m going to study in the U.S.A. this September. A. to

题目详情

I don’t know whether you happen ____ it, but I’m going to study in the U.S.A. this September.
A. to be heard      B. to be hearing       C. to hear      D. to have heard
题型:单选题难度:偏易来源:不详

答案

D
happen to have done sth 为不定式的完成时, 表示一个已经完成了的动作,强调对于现在的影响.

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