the names are my friend's 改病句

The names are my friend's 有什么语法错误 The names are my friends'为什么friend后要加s'? The names are my friend's. 改错 friend's 改成friends' 答案上的 frien she is a lovely teacher.The names are my friend's 这两句话有错吗? 改病句：My friend Cathy is the same age as me personal names are people's names翻译 The names are my friends.这句话对吗? 1.What are the three children's names?的答语 are friend's my some here of photos family 和 the in are bort some things are in the bed 改病句 还有 I need my hat .Please take the news are very good 改病句 (Here)( are) my (English)( first friend's )map.打了括号的哪个是错的 请改