-Do you know the tall boy with sunglasses?-Yes he is Jack Green and he is one of my frien

问题补充：

-Do you know the tall boy with sunglasses?

-Yes ,he is Jack Green and he is one of my friends.

A. a friend of mine

B. a friend of me

C. my friends’friend

D. my best friends

答案：

(答案→)A. a friend of mine

B. a friend of me

C. my friends’friend

D. my best friends

解析：one of my friends“我的一个朋友”，意思同a friend of mine。