关于名词复数的问题

题目

关于名词复数的问题
怎么判断名词的复数S应该加在什么地方
例如1“Jim was late for two classes this morning.”he said that he forgot both of the ----.
A.room number B.room number C.room's number D.room numbers
2 After ten years,all those youngsters became____.
A.grown-ups B.growns-ups C.grown-up D.growns-up
在以上两道题中,例1选D,例2选A.应该怎么判断S加在哪个词后面?

答案

很简单,规则都是加在名词后面,只不过1中整个room number是名词,而2中用短横线构造出的整个是名词,因此加在up后面咯.另外楼主注意,像1这种room number名词修饰名词而构成的名词只有两个例外：1是man 2是woman,比如单...