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    We must do whatever we can to the river being polluted any more. A. separate B. keep C. prevent D. guard 【查看更多】

     

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    We must do whatever we can to _____ the river being polluted any more.  
    [     ]
    A. separate        
    B. keep            
    C. prevent          
    D. guard

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     We must do whatever we can to____________the river being polluted any more.

       A. separate         B. keep              C. prevent          D. guard

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    We must do whatever we can to            the river being polluted any more.

      A. separate         B. keep              C. prevent          D. guard

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     We must do whatever we can to        the river being polluted any more.

       A. separate         B. keep              C. prevent          D. guard

     

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     We must do whatever we can to ________ the river from being polluted any more.

    A. separate        B. keep            C. prevent         D. guard

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