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    We can never expect bluer sky unless we create less polluted world. A. a; a B. a; the C. the; a D. the; the 【查看更多】

     

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    We can never expect    bluer sky unless we create     less polluted world.

    A. a; a                               B. a; the

    C. the; a                             D. the; the

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    We can never expect____ bluer sky unless we create_____less polluted world.

    A. a; a                                   B. a; the

    C. the; a                                 D. the; the

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    We can never expect____ bluer sky unless we create_____less polluted world.

    A. a; a                                   B. a; the

    C. the; a                                 D. the; the

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    We can never expect         bluer sky unless we create         less polluted world.

       A. a; a       B. a; the          C. the; a         D. the; the

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    We can never expect____bluer sky unless we create____ less polluted world.  

    A. a; a                                   B. a; the  

    C. the; a                                D. the; the  

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