the man who wears sunglasses who is my father,是不是the man who wears sunglasses is my father更好一些?为什么呢
问题描述：
the man who wears sunglasses who is my father,
是不是the man who wears sunglasses is my father更好一些?
为什么呢
答
the man who wears sunglasses is my father.
这句正确
The man（主语） who wears sunglasses（修饰主语的定语从句） is （系动词）my father（表语）.
如果在is 前加个who,结构全乱了!（见上面的结构分析）