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    【题目】In boxing, players should wear gloves and mouth guards ________ anything dangerous happens.

    A.in vainB.in a wordC.in debtD.in case

    【答案】D

    【解析】

    考查目的状语从句。句意：在拳击运动中，运动员应该戴手套和牙托，以防任何危险的事情发生。A. in vain徒劳；B. in a word总之；C. in debt负债；D. in case以防，以免。分析句子可知，戴手套和牙托是为了“防止”发生危险，所以用in case引导目的状语从句。故选D项。

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