英语代词的用法a friend of ...后面加him还是his

英语代词的用法a friend of ...后面加him还是his 他的一位朋友 是a friend of his 还是 a friend of him 介词后面名词的用法a friend of sb's为什么of后面接名词性物主代词,介词后面不要接宾格吗?而且of是.的, a friend of mine这一类物主代词的用法 英语物主代词的用法我看到语法书上举了这么个例子“可以说a friend of mine=one of my friend one friend of his 还是one friend of him,这两个句子哪个是正确的表达方式, It was from a good friend of his 后面是填 mother's 还是 mother Ann was a good friend of him/his/he? A friend of __ came here yesterday.(him,his) 【英语】of后面跟主格还是宾格呢?a good friend of mine/a good friend of me/a a number of后面加单数名词的用法是什么? hundred用法求hundred 的 用法,包括何时加OF,何时前面加数字,何时用复数,后面的名词怎么家,加代词怎么用