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    -Why does the Lake smell terrible? -Because large quantities of water . A. have polluted B. is being polluted C. has been polluted D. have been polluted [答案]D [解析]考查动词时态.语态和主谓语一致.根据前一分句可知所填动词表示过去发生的动作对现在产生的影响.时态用现在完成时.动词与主语是被动关系.用被动语态.主语是large quantities of water.其中心词是quantities.是复数.谓语动词用复数.选D. 【查看更多】

     

    题目列表(包括答案和解析)

    Why does the Lake smell terrible?

    -Because large quantities of water       .

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

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    -Why does the Lake smell terrible? 

    -Because large quantities of water       .  

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

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    -Why does the Lake smell terrible?

    -Because large quantities of water__________.

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

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    —Why does the lake smell terrible?

    —Because large quantities of water_______________.

    A.have polluted??????? B.is being polluted

    C.has been polluted??? D.have been polluted

     

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     —Why does the lake smell terrible?

    —Because large quantities of water            .

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

     

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