Five-year-old children are too young to go to school,________?

问题描述:

Five-year-old children are too young to go to school,________?
A.are they B.aren’t they C.were they D.have they 为什么不是B?

A
前面是否定的,后面就要用肯定.
前面是肯定,后面就要用否定.
词句前面是否定,所以后面用肯定.