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    I’m sorry to keep you for a long time. 【查看更多】

     

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    I'm sorry to keep you ______ for a long time . 
    [     ]
    A. to wait      
    B. waiting     
    C. wait     
    D. waited

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     I’m sorry to keep you __________ for such a long time!

    A) wait                    B) waiting                     C) to wait                   D) waited

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    I'm sorry to keep you ________ for a long time．

    [　　]

    A．wait

    B．waited

    C．waiting

    D．to wait

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    I’m very sorry to keep you _____ for a long time

    A. wait        B. waits       C. waiting       D. to wait

     

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    I'm so sorry to keep you        for a long time.  
    [     ]
    A. waiting        
    B. to wait      
    C. wait          
    D. waited

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