句子what I can do is to study hard.为什么要有to?
问题描述:
句子what I can do is to study hard.为什么要有to?
答
what I can do 相当一个n.和My task is to do sth的结构是一样的
句子what I can do is to study hard.为什么要有to?
what I can do 相当一个n.和My task is to do sth的结构是一样的