I don't know what is it 和 I don't know what it is RT,意思是我不知道这是什么

问题描述:

I don't know what is it 和 I don't know what it is
RT,意思是我不知道这是什么

I don't know what is it是病句.

后一个不是病句。

I don't know what is it 是病句,在宾语从句中要用陈述句语序

前者是病句,know后面这是什么作宾语,要用陈述语序