—Do you know the activity called “______...

—Do you know the activity called “________ Lights” ?

—Oh,it’s an activity that reminds people of saving energy.

A.Turn onB. Turn down

C. Turn offD. Turn up

C 【解析】试题分析：句意为：---你知道“灭灯”活动吗？---哦，这是一个提醒人们节约能源的活动。Turn on：打开（灯、水龙头等），Turn down：关小， Turn off：关闭， Turn up：开大。根据“saving energy”的提示可知应选C。考点：考查动词短语。

考点分析：

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