为什么是a friend of mine 而不是a friend of me 呢

为什么是a friend of mine 而不是a friend of me 呢 a friend of mine. 我的一个朋友：a friend of mine 我爸爸的一个朋友为什么是a friend of my father's 我的一个朋友a friend of mine这个理解 我爸爸的一个朋友为什么是a friend of my father's a friend of my还是a friend of mine A friend of mine,A friend of myself.哪个对? i will send you a photo of him 为什么是him 不应该是his吗 而a friend of mine为什么 Tom is a best friend of mine. a friend of mine=?my friends He is a friend of mine.翻译. I _______ (填空)a friend of mine he is a friend of mine 初一英语作文：A Friend of Mine A Good Friend of Mine 英语作文 just a friend of mine 歌词 She Was A Friend Of Mine 歌词 a good friend of mine 为什么用mine his a friend of mine 为什么用mine