Question

【题目】Remember to _____the lights before you leave the classroom to save electricity.

A.turn downB.take offC.turn offD.put off

Answer 1

【答案】C

【解析】

句意：为了省电，离开教室前记得关灯。

考查动词短语。turn down调低；take off起飞，脱下；turn off关上；put off推迟。根据“to save electricity”为了省电。可知，应该是离开教室前记得关灯。故选C。