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    ---I called you last night, but nobody answered the phone. ---Sorry, . A. I must be sleep at that moment. B. I must have slept at that moment. C. I must have been asleep at that moment. D. I must have fallen asleep at that moment. 【查看更多】

     

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    --- I called you last night, but nobody answered the phone.

       --- Sorry, ________.

    A. I must be sleep at that moment.                 B.  I must have slept at that moment.

    C. I must have been asleep at that moment.     D.I must have fallen asleep at that moment.   

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