练习册

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    --Must I finish reading the book today? --No. You if you have something else to do. A. mustn’t B. couldn’t C. can’t D. don’t have to 【查看更多】

     

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    —Must I finish reading the book today?

    —No. You ______ if you have something else to do.

    A．mustn’t           B．couldn’t          C．can’t                 D．don’t have to

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