Jim was late for two classes this morning.He said that he forgot both of the ______.

题目

Jim was late for two classes this morning.He said that he forgot both of the ______.
a.rooms number b.room number c.room’s numbers d.room number
请高手给个确切的答案,在讲下其中的语法知识,我将感激不尽,

答案

我也觉得是room numbers
这里是名词修饰名词,应该不用物主格的
再给你举个例子
two women teachers
这个常考到的,women 和 teacher 都要变成复数~一定要记住!
你这个例子不常考的