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    ( ) We should encourage everyone contributions to our environment. A. to make; protecting B. to make; to protect C. making; protecting D. making; to protect 【查看更多】

     

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    We should encourage everyone ______  contributions to  ______ our environment.           
    [     ]
    A. to make; protecting    
    B. to make; protect           
    C. making; protect        
    D. making; protecting

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    We should encourage everyone ______ contributions ______ our environment.

    [     ]

    A. to make; protecting
    B. to make; to protect
    C. making; to protect
    D. making; protecting

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