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    精英家教网 > 高中英语 > 题目详情
    My parents live in a small village. They always keep candles in the house ___ there is a power cut.
    A．ifB．unlessC．in caseD．so that
    C
    根据句意可知留蜡烛在家里是为了以防万一停电。in case意为“以防万一”；if 引导条件状语从句,意为“如果”；unless引导让步状语从句,意为“如果不”；so that引导目的状语从句,意为“为了”。
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