将句子合并定语从句 The boy is shy.he is wearing a black coat.能改成这样吗?-------The boy who is shy is wearing a black coat.为什么?

问题描述:

将句子合并定语从句 The boy is shy.he is wearing a black coat.
能改成这样吗?-------The boy who is shy is wearing a black coat.为什么?