I was just thinking.意思是我在想点事.为什么用was不用am?

问题描述:

I was just thinking.意思是我在想点事.为什么用was不用am?

thinking的东西已经想完了,你不可能一边thinking一边说在请教一个。where are you headed?要去哪儿?headed是动词,还是head的过去式?你确定句子没错?