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

A.whenB.ifC.untilD.before

【答案】C

【解析】

考查連詞辨析。句意：很少有人完全注意他們的健康狀況直到他們患了重病。A. when 當……時候；B. if 如果 C. until 直到；D. before在……在之前。分析句意可知，本句為until引導的時間狀語從句。故選C項。

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