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    What we used to think impossible now does seem possible. . A. was B. is C. has been D. will be 【查看更多】

     

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    What we used to think______impossible now does seem possible.

    A.is                      B.was                    C.has been             D.will be

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    What we used to think ______ impossible now does seem possible.

           A．is                         B．was                    C．has been              D．will be

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     What we used to think ______ impossible now does seem possible.

    A. is                 B. was                  C. has been        D. will be

     

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    What we used to think ____ impossible now does seem possible.

    A. is　 B. was　 C. has been　　 D. will be

     

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    What we used to think _____ impossible now does seem possible.  
    [     ]

    A. is                
    B. was              
    C. has been      
    D. will be

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