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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 [解析]选 C 现在分词的完成式表示此动作在主句 谓语动词之前. 【查看更多】

     

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

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

     

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