______ a light when necessary. You will bring light to other people and yourself. A．Try on ..

______ a light when necessary. You will bring light to other people and yourself. A．Try on ..

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。

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