But having finished the day's work,what do you do with those other eight hours?

问题描述:

But having finished the day's work,what do you do with those other eight hours?
其中having为什么 加上ING形式呢?

是时间状语从句
前面省略了一个after
把after加在having前面
再看就明白了
.
呃 我是初三的
这是在学新概念的时候,老师讲的