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    There a dirty ball under the table for two days. A. has B. is C. has been D. have been 【查看更多】

     

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    There ________ a dirty ball under the table for two days .

    [　　]

    A．has
    B．is
    C．has been
    D．have been

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    There ________ a dirty ball under the table for two days .

    [　　]

    A．has
    B．is
    C．has been
    D．have been

    查看答案和解析>>


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