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    21．A．mustn't B．couldn't C．needn't D．shouldn't 【查看更多】

     

    题目列表(包括答案和解析)

    —Must I finish my home work today?

    —No, you _____. You may finish it tomorrow.

    A．mustn’t              B．shouldn’t              C．needn’t              D．couldn’t

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    Though he explained it carefully, I ________ understand him．

    [　　]

    A．couldn’t

    B．mustn’t

    C．shouldn’t

    D．needn’t

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    — Must I finish that work today?

    — No, you _____. You may finish it in three days.

    A．mustn’t

    B．needn’t

    C．shouldn’t

    D．couldn’t

     

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    ——Can I walk across the road now, mum?

    ——No, you_______. You have to wait until the light turns green.

    A．couldn't          B．shouldn't          C．mustn't           D．needn't

     

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    (2006年徐州市)

    --- Must I finish that work today?

    --- No, you ________. You may finish it in three days.

    [　　]

    A．mustn't
    B．needn't
    C．shouldn't
    D．couldn't

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