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    Four-fifths of the crop . a. are ruined b. was ruined c. were ruined d. have been ruined 【查看更多】

     

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    .  Four-fifths of the crop ______.

    A. are ruined    B. was ruined    C. were ruined    D. have been ruined

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    Four-fifths of the crop ______. 

    A．are ruined         B．was ruined         C．were ruined       D．have been ruined

     

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    .  Four-fifths of the crop ______.

    A．are ruined

    B．was ruined

    C．were ruined

    D．have been ruined

     

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