题目内容
—Listen!Someone is knocking at the door.Who can it be?
—It________be Tom.He said he would visit me this evening.
A.can’t
B.need
C.must
D.mustn’t
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题目内容
—Listen!Someone is knocking at the door.Who can it be?
—It________be Tom.He said he would visit me this evening.
A.can’t
B.need
C.must
D.mustn’t