Mr. Tang enjoys writing in his spare time. His works have him many good friends.A. earned

问题补充：

Mr. Tang enjoys writing in his spare time. His works have him many good friends.

A. earned

B. caught

C. discovered

D. introduced

答案：

(答案→)A. earned

B. caught

C. discovered

D. introduced

解析：词义辨析。Earned获得，赢得，结交；caught抓住；discovered发现；introduced

介绍。句意：唐先生在业余时间喜欢写作。他的作品已经使他结交了很多好朋友。所以选A。