xiaoyoubaobei
一、什么时候用被动语态 1.don't know who is doing the action. 2.don't care who dose the action. 3.委婉的说法 二、被动语态的构成 1.subject + is / was / will be / have or has been +pp +其他 ① my hair is cut. my hair is cut by Tonny.(如果想强调人的话可以用by xx) ② The cookies were eaten.③ You article was read but I think you still need to rewrite it again.(比较委婉的说法)I read you article but I think you still need to rewrite it again.(直接的书法，容易伤人)
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