Jackie Chan was one of the most famous in the world.A. actress B. actresses C. actor D.

问题补充：

Jackie Chan was one of the most famous in the world.

A. actress

B. actresses

C. actor

D. actors

答案：

A. actress

B. actresses

C. actor

(答案→)D. actors

解析：句意：Jackie Chan是世界上最著名的演员之一。one of the+形容词的最高级+名词的复数，成龙是男演员。故选D.