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    38．There is no light in the dormitory．They must have gone to the lecture, ? A．didn’t they B．don’t they C．mustn’t they D．haven’t they 【查看更多】

     

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    There is no light in the dormitory．They must have gone to the lecture, ________?


    1. A.
      didn't they
    2. B.
      don't they
    3. C.
      mustn't they
    4. D.
      haven't they

    查看答案和解析>>

    There is no light in the dormitory．They must have gone to the lecture, ________?

    [　　]

    A．didn't they
    B．don't they
    C．mustn't they
    D．haven't they

    查看答案和解析>>

    There is no light in the dormitory．They must have gone to the lecture, ________?

    [　　]

    A．didn't they
    B．don't they
    C．mustn't they
    D．haven't they

    查看答案和解析>>

    There is no light in the dormitory．They must have gone to the lecture，________？

    [　　]

    A．didn't they
    B．don't they
    C．mustn't they
    D．haven't they

    查看答案和解析>>

    There is no light in the dormitory．They must have gone to the lecture, ________?

    [　　]

    A．didn’t they

    B．don’t they

    C．mustn’t they

    D．haven’t they

    查看答案和解析>>


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