解释一下什么叫主语从句
问题描述：
解释一下什么叫主语从句
答
主语从句可以按其引导词的不同分为三类：第一类,用从属连词that引导的主语从句,例如：That we shall be late is certain.That the driver could not control his car was obvious.这种结构主要是对that从句的内容进...