She is almost 2 hours late. What to her? [ ] A.should have happened B.must have
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She is almost 2 hours late. What ________ to her?
[]
A.should have happened
B.must have happened
C.may have happened
D.can have happened
试题答案
答案:D
解析:在疑问句中表示推测,应使用“can”;是对过去情况的推测,所以使用can have done。 |