判断英语句子正误(请认真看题)

问题描述:

判断英语句子正误(请认真看题)
So instead,what I do is just stand outside and look through the window.
为什么不说:...what I do is just to stand...
动词原形可作表语吗?

动词原形不可以做表语
应该改为standing outside and looking through the window
另外 to do sth 虽然可以做表语
但意思与doing sth 有区别
to do sth 一般表示将要干某事 而 doing sth则表示正在做某事
两者都可以做主语 表语等