We had a __________ holiday last week.A.three days B.three-days C.three-day D.three day为什么用A不可以?和a five years old boy不是一样的么?

分类: 作业答案 • 2021-12-20 02:23:40

问题描述：

We had a __________ holiday last week.
A.three days B.three-days C.three-day D.three day
为什么用A不可以?和a five years old boy不是一样的么?

答