Who did teach him a few words of italian?这句话对吗?请说下理由!

Who did teach him a few words of italian?这句话对吗?请说下理由!
Who did teach him a few words of italian?这句话对吗?请说下理由!

Who did teach him a few words of italian?这句话对吗?请说下理由!
对的
是一个强调句
关键是句子里的did
这个did相当于中文句子中的 "的确,确实"之类的,起强调作用.