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    3．We shouldn't spent our money testing so many people，most of _____are healthy．（　　）
    A．thatB．whichC．whatD．whom

    分析 我们不应该花钱检查这么多人，大多数人都很健康．

    解答 答案：D
    句中most of_____are healthy修饰名词people，是一个非限制性定语从句；关系词指代先行people，且在从句中作介词of的宾语，要用whom来引导．故选D．

    点评 定语从句是用来修饰名词的形容词性从句，相当于一个形容词．连接定语从句的引导词分为关系代词和关系副词，关系代词在从句中要作主语或宾语；关系副词在从句中作状语．这也是选择关系词的一个判断方法．

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