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    I just don’t understand that prevents so many Americans from being as happy as one might expect. A. why it does B. what it does C. what it is D. why it is 【查看更多】

     

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    I just don't understand_____________ that prevents so many Americans from

    being as happy as one might expect.

    A. why it does                  B. what it does   

    C. what it is                   D. why it is

    查看答案和解析>>

    I just don't understand_____________ that prevents so many Americans from being as happy as one might expect.

    A. why it does                  B. what it does   

    C. what it is                   D. why it is

    查看答案和解析>>

    I just don't understand_____________ that prevents so many Americans from being as happy as one might expect．

           A．why it does                    B．what it does

           C．what it is                       D．why it is

    查看答案和解析>>

    I just don't understand_______ that prevents so many Americans from being as happy as one might expect.

    A. why it does       B. what it does       C. what it is            D. why it is

    查看答案和解析>>

    I just don't understand_______ that prevents so many Americans from being as happy as one might expect.

    A. why it does　　　 B. what it does　　　 C. what it is　　　 D. why it is

     

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