________energy, we turn off the lights for Earth Hour on the last Saturday in MarchA.SavingB.To sav

题目简介

________energy, we turn off the lights for Earth Hour on the last Saturday in MarchA.SavingB.To sav

题目详情

________energy, we turn off the lights for Earth Hour on the last Saturday in March
A.SavingB.To saveC.SavedD.Having saved
题型:单选题难度:中档来源:不详

答案

B

试题分析:考查非谓语动词。题意:为节约能源,我们每年三月最后一个星期六关灯一小时。目的状语由不定式充当。故B项正确。

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