Why do you think they are great ?这里的do you think 是插入语吗?如何判断do you think在一句话中是否是做插入语

问题描述:

Why do you think they are great ?
这里的do you think 是插入语吗?如何判断do you think在一句话中是否是做插入语

判断依据:去除do you think, 看剩下的单词是否依然可以成句,且是陈述语序.
或者可以看有没有特殊疑问词,有的话,基本上都是插入语.