We have a ___ winter vacation every yearA.forty-day B.forty days _英语解答

We have a ___ winter vacation every year
A.forty-day B.forty days C. forty-days D. forty-days'
说出一下原因来谢谢.

人气：432 ℃　时间：2020-04-05 21:12:51

解答

A
forty days （名词词组）做形容词,变成A的形式