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    We last night ,but we went to the concert instead, so we failed in the examination. A．should study B. must study C. should have studied D. must have studied 【查看更多】

     

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    We ________ last night, but we went to the concert instead, so we failed in the examination.


    1. A.
      should study
    2. B.
      must study
    3. C.
      should have studied
    4. D.
      must have studied

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    We ______last night ,but we went to the concert instead, so we failed in the examination.

    　 A．should study　　　　　　　　 B. must study

    　 C. should have studied　　　　　　 D. must have studied

     

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    We ________ last night, but we went to the concert instead, so we failed in the examination.

    [　　]

    A．should study
    B．must study
    C．should have studied
    D．must have studied

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    We ________ last night, but we went to the concert instead, so we failed in the examination．

    [　　]

    A．should study

    B．must study

    C．should have studied

    D．must have studied

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