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    the floor, I found his pen lying on the ground. A. While sweeping B. While swept C. If sweeping D. If swept 25 England is the largest of the four countries and it is divided roughly into three zones. A. at convenience B. for convenience C. in convenience D. with convenience 【查看更多】

     

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    _________ the floor, I found his pen lying on the ground.

    A．While sweeping

    B．While swept

    C．If sweeping

    D．If swept

     

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    ____ the floor, I found his pen lying on the ground.

    　　 A. While sweeping　 B. While swept　

    　　 C. If sweeping　 　　　 D. If swept

     

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    ________ the floor, I found his pen lying on the ground．

    [　　]

    A．While sweeping

    B．While swept

    C．If sweeping

    D．If swept

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