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    28．-There is a lot of smoke coming out of the teaching – building. -Really? It be a fire. A．can B．ought to 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.

    ---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.

    —Really? It         be a fire.

    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.

    —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

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