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    - There is a lot of smoke coming out of the teaching building there. - Really? It be a fire, most probably. A. ought to B. can C. have to D. must 【查看更多】

     

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    ---- There is a lot of smoke coming out of the teaching-building there.

    ---- Really? It _____ be a fire, most probably.

    A. can      B. ought to       C. have to      D. must

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    —There is a lot of smoke coming out of the teaching-building there.

    —Really?It______ be a fire,most probably.

    A.can                           B.ought to

    C.have to                   D.must

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    ---- There is a lot of smoke coming out of the teaching-building there.

    ---- Really? It _____ be a fire, most probably.

    A. can      B. ought to       C. have to      D. must

    查看答案和解析>>

    — There is a lot of smoke coming out of the teaching building there.

    — Really? It _________ be a fire, most probably.

    A. ought to           B. can            C. have to        D. must

    查看答案和解析>>

    —There is a lot of smoke coming out of the teaching-building there.?

    —Really?It _________ be a fire,most probably.?

    A.can             B.ought to             C.have to        D.must

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