第三题friends为什么要加s

第三题friends为什么要加s make friends with的friends,为什么要加s? He 's talking with one of his (friends) now.(friends)为什么要加s i don't have any friends为什么要加s animal friends为什么animal不加s we have been best friends for a long time中friends为什么要加s 第三题its不是单三吗》为什么sound不用加s I love you,Geroge.Let's make friends,OK?(friends为什么加s) 请问he is one of my father's friends为什么要加ONE "Tom is one of my best friends"是什么意思?为什么"friend"后面要加"s"? they are good friends of ours.our为什么加s who were your first friends?friend 后为什么加s