题目内容
【题目】I posted a book to her three weeks ago. She________have received it.
A.must
B.should
C.might
D.could
【答案】A
【解析】因为书是三周前寄出的,故她肯定已经收到了。must have done表示肯定的推测,用于肯定句中。
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题目内容
【题目】I posted a book to her three weeks ago. She________have received it.
A.must
B.should
C.might
D.could
【答案】A
【解析】因为书是三周前寄出的,故她肯定已经收到了。must have done表示肯定的推测,用于肯定句中。