a light when necessary. You will bring light to other people and yourself.A. Try onB. Ge

问题补充：

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：

A. Try on

B. Get on

(答案→)C. Turn on

D. Put on

解析：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。