Look, the lights in the room don’t . Someone must forget .
A. put out; going them out
B. be out; put them out
C. go out; to put them out
D. go out; putting them out
网友回答
A. put out; going them out
B. be out; put them out
(答案→)C. go out; to put them out
D. go out; putting them out
解析：考查短语。go out不及物，put out及物，都有“熄灭”；forget to do忘记去做。句意：看！房间的等没有熄灭，一定有人忘记关了。