A:What do you usually do after yoo go back home?

问题描述:

A:What do you usually do after yoo go back home?
B:Having cupper,and then doing my homework.
其中,回答为什么用Having和doing,而不是用have和do呢?

因为问的是usually做的事情,表示泛指,所以用动名词.如果表达具体的特定的某一次,则用动词原形或一般过去式(根据具体的时间而定)