what I saw made me very sad.what是什么意思什么用法?

what I saw made me very sad.what是什么意思什么用法? 请问what i saw made me very sad是什么结构 变被动语态What I saw made me very sad. 请问what i saw made me very sad what i saw made me very sad,能不改成what i saw make me very sad? what I heard made me very sad? 请问what i saw made me very sad中me可以改成myself吗? What Isaw made me very sad 比如说一句what i saw made me very sad.这句为什么是what引导的名词性从句,WHAT引导的名 what can i do for you/?what you said made me very sad do you 请教英语问题.新概念一册143课中有一句：What I saw made me very sad.我所见到的一切使我非常 What you said made me ( ) sad