has donated much money to the charity .A. Hers friendB. A friend of herC. Some of her fri

问题补充：

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

答案：

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。