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    1．The pills might cure him，_____ he's taken them regularly．（　　）
    A．thanks toB．in caseC．so thatD．if only

    分析 只要他按时服用，这药或许能治好他（的病）．

    解答 答案：D
    句意表达的是条件；thanks to幸亏，介词短语，后面不能接句子；in case以防万一；so that为了；if only只要，引导条件状语从句．故选D．

    点评 从属连词是连词的一种，用来引导名词性从句和状语从句．大致可分为三大类：that（无词义，不做成分）if，whether （表达是否的意义，但不做句子成分）； 连接代词：who，whom，whose，what，which，whatever，whoever，whichever（有词义，在句子中可作主语、表语、宾语）；连接副词：when，where，why，how，how many，how long，how far，however，whenever，wherever （有词义，作从句的状语）．学习时，要注意区分和掌握．

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