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    3．-Excuse me, are you traveling by train or meeting someone? -We are the three o’clock train to Chicago. A. traveling B. waiting C. taking D. setting 【查看更多】

     

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     — Excuse me, are you traveling by train or meeting someone?

       — We are ________ the three o’clock train to Chicago.

    A. traveling     B. waiting

    C. taking       D. setting

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