有关状语从句
问题描述：
有关状语从句
she saw it happen when she was walking past.我知道这个句子还可以写成 she saw it happen when walking past.但是这个属于哪个语法点呢?
答
she saw it happen when she was walking past.可以写成 she saw it happen when walking past.前者是 状语从句 后者是带连词的现在分词 作状语 相当于一个状语从句前者是复合句 后者是简单句 当 状语从句的主语 与...