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    43．A．While B．As soon as C．Before D．Since 【查看更多】

     

    题目列表(包括答案和解析)

    He met many problems ______ he was going over his lessons.

    A．before

    B．as soon as

    C．since

    D．while

     

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    He met many problems           he was going over his lessons.

    A．before

    B．as soon as

    C．since

    D．while

     

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    He met many problems           he was going over his lessons.

    A．before

    B．as soon as

    C．since

    D．while

     

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    He met many problems           he was going over his lessons.
    A．before B．as soon as C．since D．while

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    He met many problems            he was going over his lessons.
    A．before
    B．as soon as
    C．since
    D．while

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