He said he couldn't understand people who talked fast,为什么用过去式?这样的句式有什么规律吗?
问题描述：
He said he couldn't understand people who talked fast,为什么用过去式?这样的句式有什么规律吗?
答
he said 是 主句,后面是从句,said 的宾语从句
因为主句是过去时态,所以,影响到从句的时态,
就是,从句的时态根据主句的时态