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    Controlling water-pollution is necessary it will be expensive. A. so that B. as if C. even though D. ever since 【查看更多】

     

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    Controlling water-pollution is necessary_____ it will be expensive.

    A. so that        B. as if          C. even though     D. ever since

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    Controlling water-pollution is necessary_____ it will be expensive.

    A．so that

    B．as if

    C．even though

    D．ever since

     

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