Langlang plays the piano very well. He is one of pianists in China.A. famousB. more famous

问题补充：

Langlang plays the piano very well. He is one of pianists in China.

A. famous

B. more famous

C. most famous

D. the most famous

答案：

A. famous

B. more famous

C. most famous

(答案→)D. the most famous

解析：one of 最高级+名词的复数，最……当中的一个。最高级前加冠词the。in China,是比较的范围。句意：朗朗钢琴弹的非常好。他是中国最著名的钢琴家之一。故选D。