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    Ladies and gentlemen, please fasten your seat belts. The plane . A. is taking off B. takes off C. will be take off D. has taken off 【查看更多】

     

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    Ladies and gentlemen, please fasten your seat belts. The plane _________.

      A. is taking off         B. takes off       C. has taken off       D. will be taken off

     

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    Ladies and gentlemen, please fasten your seat belts. The plane          .
    [     ]
    A. is taking off          
    B. takes off      
    C. has taken off      
    D. took off

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    Ladies and gentlemen, please fasten your seat belts. The plane _______.

    A. takes off    B. is taking off    

    C. has taken off      D. took off

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    Ladies and gentlemen,please fasten your seat belts.The plane______.

    A.takes off                          B.is taking off

    C.has taken off                     D.took off

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    Ladies and gentlemen, please fasten your seat belts. The plane  ________.

    A. takes off       B. is taking off     C. has taken off   D. took off

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