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    The manager entered the office and was happy to learn that four-fifths of the tickets . A. was booked B. had been booked C. were booked D. have been booked 37. Every possible means to prevent the air pollution, but the sky is still not clear. A. is used B. are used C. has been used D. have been used 【查看更多】

     

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    The manager entered the office and was happy to learn that four-fifths of the tickets ______.
    [     ]
    A. was booked    
    B. had been booked  
    C. were booked    
    D. have been booked

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    .The manager entered the office and was happy to learn that four-fifths of the tickets ___.

    A. was booked  B. had been booked  C. were booked    D. have been booked

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    The manager entered the office and was happy to learn that four-fifths of the tickets ______.

    　 A. was booked       B. had been booked C. were booked      D. have been booked

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     The manager entered the office and was happy to learn that four-fifths of the tickets ______.

    A. was booked    B. had been booked 

    C. were booked    D. have been booked

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    The manager entered the office and was happy to learn that four-fifths of the tickets _______ .
        A. was booked B. had been booked C. were booked   D. have been booked?

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