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    . in the queue for an hour,Tom suddenly realized that he had left his wallet at home. A. To wait B. Have waited C. Having waited D. To have waited 【查看更多】

     

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    _____ in the queue for an hour,Tom suddenly realized that he had left his wallet at home.

    A．To wait

    B．Have waited

    C．Having waited

    D．To have waited

     

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    _____ in the queue for an hour,Tom suddenly realized that he had left his wallet at home.

      A. To wait  B. Have waited   C. Having waited    D. To have waited

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    _____ in the queue for an hour,Tom suddenly realized that he had left his wallet at home.

    A．To waitB．Have waitedC．Having waitedD．To have waited

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    ________ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.


    1. A.
      To wait
    2. B.
      Have waited
    3. C.
      Having waited
    4. D.
      To have waited

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    ______ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.

    A. To wait B. Have waited　?

    C. Having waited D. To have waited?

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