题目内容
—Is the man in the car John?
—No,it ________ be him. He went to Xi'an on business yesterday.
A.can't B.must
C.mustn't D.could
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题目内容
—Is the man in the car John?
—No,it ________ be him. He went to Xi'an on business yesterday.
A.can't B.must
C.mustn't D.could