- Who is in the reading room? The lights are all on. - . A. Nothing B. None C. N

— Who is in the reading room? The lights are all on.

—  ___________.

A. Nothing             B. None          C. No one           D. No

试题答案

C 

解析:

用who 提问，回答用no one指人。 none 指数量，回答how many 的提问， nothing 回答what 的提问。