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    7．It was on a train _____ I was travelling to Xi'an _____ I made the acquaintance of the old professor from UK．（　　）
    A．that； whereB．that； thatC．where； thatD．which； that

    分析 在去西安市的火车上，我结识了一位来自英国的一位老教授．

    解答 答案：C．根据句义可知I was travelling to Xi'an是a train的定语从句，表示"在去西安市的火车上"，所以用关系副词where引导定语从句． 因为 on a train 是I made the acquaintance of the old professor from UK的地点状语，所以It was 是强调句式的一部分，所以第二个空用that．因此答案是C．

    点评 考查定语从句和强调句式．
    对于复合句，在平时阅读文章的时候注意理解和分析，从而提高句子理解的能力．

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