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    14．________ the train arrived，some people were waiting inside the station________ others were heading for the platform．（　　）
    A．While； whileB．While； whenC．When； whenD．When； while

    分析 当火车到达时，一些人在车站面面等，而另一些人朝站台方向走去．

    解答 答案：D．根据选项 when当…时，while当…时，尽管，然而（前后对比），结合句意，当火车到达时，一些人在车站面面等，而另一些人朝站台方向走去．可知此处缺少了一个引导时间状语从句的连接词，arrive是瞬间动词，只能用when，故D正确

    点评 本题考查时间状语从句的连接词，连词的辨析要根据上下文的语境进行，要特别注意一些连词的一词多义现象．如本题的while然而（前后对比）

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