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    ( ) Half of the class done most of the work. The left rather difficult. A. have; is B. has; is C. have; are D. has ; are 【查看更多】

     

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    Half of the class _____ done most of the work . The left _____ rather difficult.

    A. have ; is   B. has ; is   C. have ; are   D. has ; are

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    Half of the class _____ done most of the work . The left _____ rather difficult.

    A. have ; is   B. has ; is   C. have ; are   D. has ; are

    查看答案和解析>>


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