he is a good friend of of my father's

he is a good friend of of my father's He is a friend of my father正确还是He is a friend of my father's He is a friend of Tom's father He is a friend of my brother's.和He is a friend of my brother Jack is _____old friend of my father’s and he is _____ headm 1.a friend of my father 与a friend of my father's有什么区别, a friend of my father和a friend of my father`s的区别? 英语翻译a friend of my father's还是a friend of my father,如何辨别, a friend of my father? a friend of my father's? he is a friend of my mother与he is a friend of my mother’s有什么 He is an old friend of my father.哪里有错? He is ( ) of good friend