It is fun to do sth对,还是It is fun to doing sth

分类: 作业答案 • 2021-12-19 16:21:48

问题描述：

答

to do

答

It is fun to do sth对
动词不定式作真正的主语，it作形式主语。
祝您学习进步，更上一层楼！！！O(∩_∩)O~

答

to do是不定式,当to做介词时后面才加-ing

答

it is fun to do sth