Question

【题目】Don't forget ________ the lights when you leave.

A. close B. closed

C. turning off D. to turn off

Answer 1

【答案】D

【解析】

句意：当你离开的时候，不要忘记关灯。A. close关，表示关门，关窗户；B. closed关着的；

C. turning off关掉；动名词；D. to turn off关掉，动词不定式。Don't forget to do sth.表示不要忘记去做某事，根据题意，故选D。