The main thing they should try to learn is to do good things for _英语解答

The main thing they should try to learn is to do good things for people
这里is后面为什么要用to do而不是doing?

人气：477 ℃　时间：2019-10-08 19:42:33

解答

这里的to do是做表语.和the teacher's job is to teach.是一样的.