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    精英家教网 > 高中英语 > 题目详情
    ________ I’m willing to help you out of trouble, you know, I don’t have much time available.
    A．SinceB．UnlessC．IfD．While
    D

    考查连词的用法，Since既然Unless除非If 如果While虽然。根据句意：虽然我愿意帮你摆脱困难，但你知道，我没有太多时间。两句话是转折的关系，所以用while。
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