We should work hard to finish the tenth----.A.five-years plan B.five-years-plan C.five-year-plan D.f

题目

We should work hard to finish the tenth----.A.five-years plan B.five-years-plan C.five-year-plan D.five-years"-plan
plan是名词啊？理由是什么？

答案

C
5-year 或者 5 years 都可以修饰名词
带连字符的后面就用单数
这才是考点
和plan 没有关系