Question

【题目】Remember_____off the lights when you leave the classroom.

A. turn B. to turn C. turning

Answer 1

【答案】B

【解析】句意：当你离开教室的时候，记着关灯。remember doing sth记着曾经做过的事情；remember to do sth记着去做某事，根据when you leave the classroom.可知，这里的事情来没有做，记着要做的事情用remember to do sth。故选B。