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    ( ) He has been for his credit card for an hour. A. looks B. looked. C. looking D. to look 答案:C 解题点拨:2-3．用现在完成进行时表示直到现在一直干某事. 【查看更多】

     

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    He has been ________ for his credit card for an hour.

    A. looks

    B. looked

    C. looking

    D. to look

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    He has been ________ for his credit card for an hour.

    [　　]

    A．looks
    B．looked
    C．looking
    D．to look

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