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    The famous scientist was going out he found himself surrounded by lots of young people. A. when B. before C. while D. after 【查看更多】

     

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       The famous scientist was going out _____ he found himself surrounded by lots of young people.

    A．when

    B．before

    C．while

    D．after

     

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         The famous scientist was going out _____ he found himself surrounded by lots of young people.

    A. when     B.before       C. while     D. after

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       The famous scientist was going out _____ he found himself surrounded by lots of young people.

    A．whenB．beforeC．whileD．after

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