Question

【题目】—To save energy, we should _________ the electricity when we don't use it.—I agree, you are really a greener person.
A.shut up
B.shut off
C.take away
D.take off

Answer 1

【答案】B
【解析】句意：——为了节约能源，我们应该不用电的时候，关掉电源。——我同意，你真是一个绿色环保的人。shut up闭嘴；shut off关掉；take away拿走；take off脱下。根据when we don't use it可知不用电的时候，应关掉电源。故选B。