Question

【题目】Don't forget _______ the lights when you leave the classroom.
A.to turn off
B.turning off
C.turn off
D.turned off

Answer 1

【答案】A
【解析】句意：当你离开的时候，不要忘了关上灯。此题考查固定短语forget to do sth忘记做某事。根据句意，应选A。