【英语】of后面跟主格还是宾格呢？a good friend of mine/a good friend of me/a good friend of I

Question

还有我想问一下，They are my parents，my sister and me还是They are my parents，my sister and I对？

Answer 1

a good friend of mine 用所有格；
They are my parents，my sister and me. be 动词后面接宾语。

Answer 2

mine是对的，后一个问题是me本回答被提问者采纳

Answer 3

在这里of 后用名词性物主代词mine，a good friend of mine
They are my parents，my sister and me抱歉，没明白

Answer 4

One of my best friends of mine=one of my best friends
me 或I都对

Answer 5

a good friend of mine They are my parents , my sister and I