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    40．People hardly replace any of them when they cut down so many trees every year, ? A. don’t they B. don’t people C. do they D. do people 【查看更多】

     

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    People hardly replace any of them when they cut down so many trees every year, _______?

    A. don’t they                               B. don’t people  

    C. do they                                 D. do people

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