"Who is in the class room?None."请问这句话哪里错了?

问题描述:

"Who is in the class room?None."请问这句话哪里错了?
对who的回答是用None呀
我们英语卷子上就是这道题 要找错误的地方。。
Who is in the class room?None ( )_____
AB CD

C、room去除.句子的意思是谁在班级里或者是谁在课堂上.加room不伦不类