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    20．I am sure David when we get home. A． is still sleeping B．is to be sleeping C． will still be sleeping D．will have been sleeping 【查看更多】

     

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    I am sure David 　　　 when we get home.

    A． is still sleeping 　　　　　　　　　　　 B．is to be sleeping

    C． will still be sleeping　　 D．will have been sleeping

     

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