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    ( ) -It’s necessary our environment. -I agree with you. A. protect B. protecting C. to protect D. protects 【查看更多】

     

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    — It's necessary ____ our environment.
    — I agree with you.
    [     ]
    A. protect
    B. protecting
    C. to protect
    D. protects

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    —It’s necessary ____ our environment(环境).  —I agree with you.

    A．protect（保护）

    B．protecting

    C．to protect

    D．protects

     

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    －It's necessary ________ our environment(环境)．

    －I agree with you．

    [　　]

    A．protect(保护)

    B．protecting

    C．to protect

    D．protects

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