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    -----I asleep while I was reading. -------It doesn’t matter.A. should have fallen B. must have fallen C. could fall D. must fall[解析]B本题考查情态动词表示猜测.对发生在过去的事情进行可能性极大的猜测.用must have done. 【查看更多】

     

    题目列表(包括答案和解析)

    .-----I_____ asleep while I was reading.

     -------It doesn’t matter.

    A. should have fallen   B. must have fallen   C. could fall       D. must fall

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    .-----I_____ asleep while I was reading.

    -------It doesn’t matter.

    A．should have fallen

    B．must have fallen

    C．could fall

    D．must fall

     

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