John has finished his homework .we must do something to protect the environment.被动语态
问题描述:
John has finished his homework .we must do something to protect the environment.被动语态
答
John has finished his homework .John's homework has been finished by him.we must do something to protect the environment.Something must be done to protect the environment.被动语态 要怎么去理解啊先说 主动语态,就是谁 做了什么那么相对的,被动语态,就是 什么被谁做了那有什么格式的么?动词的形式分三种现在时,过去时,过去分词被动语态中,要用动词的过去分词的形式