The club 25 years ago is holding a party for past and present members.A. foundingB. fo

问题补充：

The club, 25 years ago, is holding a party for past and present members.

A. founding

B. founded

C. being found

D. to have found

答案：

A. founding

(答案→)B. founded

C. being found

D. to have found

解析：句意：25年前建成的俱乐部，正为过去和现在的成员举行聚会，首先这个俱乐部是被人建立的所以排除A，又因为 25years ago，排除表示将来的D 和表示正在进行的C，所以答案为B。