I don’t know whether you happen , but I’m going to study in the USA this Septemb
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I don’t know whether you happen ________, but I’m going to study in the USA this September.
[]A.to be heard
B.to be hearing
C.to hear
D.to have heard
试题答案
答案:D
解析:happen to do sth.表示“碰巧做某事”。表示不定式的动作先于谓语动词发生或应该已经发生时,用不定式的完成式。 |