问题
选择题
______ a light when necessary. You will bring light to other people and yourself.
A．Try on
B．Get on
C．Turn on
D．Put on
答案
答案：C
Try on试穿，实验； Get on上车，进展；Turn on打开，发动；Put on穿上，上演。句意：有必要就打开电灯。你会给自己和他人带来光明。结合语境可知选C。