help English answer-look!Mr Hu is o

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help English answer
-look!Mr Hu is on the other side of the speet.
-It_____be him .He has gone to Lanzhou.
A.mustn"t B.can"t C.shouldn"t D.won"t
who can tell me why the right answer is D
Thank you very much!

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  • 首先mustn't be表示禁止
    对b can'tbe表示不可能,语气特别肯定
    对于c表示不应该做某事
    对于d表示不会,语气没有can强烈,所以根据语境应该选
    d