having lunch和eating lunch有什么不同?

问题描述:

having lunch和eating lunch有什么不同?
——What are they doing?
——They are______.
回答应该是having lunch还是eating lunch?

几乎所有的吃饭都是用HAVE,而不用EAT,是比较固定的用法了,很少看见有人eating lunch的,几乎把它当错误用法了.
这里肯定是用having lunch