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    Where is Mr.Smith ? Have you seen him ? He be in his office He be in his office , for I left there just now . A may , can’t B can , may not C may , mustn’t D can , don’t have to 【查看更多】

     

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    -- Where is Mr. Smith? Have you seen him?

    -- He _____ be in his office.

    -- He _____ be in his office, for I left there just now.

    A. may; can’t　 B. can; may not　 C. may; mustn’t　 D. can; don’t have to

    　　

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