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    The new term is coming. The students are busy the classrooms. A. clean B. cleans C. to clean D. cleaning 【查看更多】

     

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    The new term is coming. The students are busy _______ the classrooms.
    [     ]
    A. clean
    B. cleans
    C. to clean
    D. cleaning

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    The new term is coming. The students are busy __________ the classrooms.

    A. clean                 B. cleans               C. to clean             D. cleaning

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    The new term is coming．The students are busy ________ the classrooms．

    [　　]

    A．clean

    B．cleans

    C．to clean

    D．cleaning

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