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    Students nine hours a day. A. sleeps B. sleep C. are sleep 【查看更多】

     

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    Students ___ nine hours a day.
    [     ]
    A. sleeps  
    B. sleep  
    C. are sleep  
    D. sleeping

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    Students ________ nine hours a day．

    [　　]

    A．sleeps

    B．sleep

    C．are sleep

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