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    【题目】Few people paid full attention to their health conditions _____ they were seriously ill.

    A.whenB.ifC.untilD.before

    【答案】C

    【解析】

    考查连词辨析。句意：很少有人完全注意他们的健康状况直到他们患了重病。A. when 当……时候；B. if 如果 C. until 直到；D. before在……在之前。分析句意可知，本句为until引导的时间状语从句。故选C项。

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