has donated much money to the charity .
A. Hers friend
B. A friend of her
C. Some of her friends
D. A friend of hers
网友回答
A. Hers friend
B. A friend of her
C. Some of her friends
(答案→)D. A friend of hers
解析：her形容词性物主代词，她的，不能用作介词宾语；hers名词性物主代词，她的，不能用来修饰名词，作定语。联系本句助动词has，可知主语是单数形式，some of her friends她的一些朋友，为复数形式。故选A，她的一个朋友。