【題目】You won’t be healthy ________ you eat less sugar and exercise more.

A. unless B. when C. after D. if

【答案】A

【解析】

試題分析:句意:如果你不少吃糖、多鍛煉,你不會(huì)健康的。A. unless除非,如果不,表示條件;B. when當(dāng)……時(shí),表示時(shí)間;C. after……之后,表示時(shí)間;D. i f如果,表示條件。如果不少吃糖多鍛煉,就不會(huì)健康。如果不:unless。故選A。

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