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    ( ) I could sit down, he offered me a cup of coffee. A.Because B.Since C.Before D.Until 【查看更多】

     

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    ________ I could sit down, he offered me a cup of coffee.

    [　　]

    A．Because
    B．Since
    C．Before
    D．Until

    查看答案和解析>>

    ________ I could sit down, he offered me a cup of coffee.

    [　　]

    A．Because
    B．Since
    C．Before
    D．Until

    查看答案和解析>>


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