At first I doubted his ability but in the end he to do the job well. A. succeededB. tried

问题补充：

At first I doubted his ability, but in the end he to do the job well.

A. succeeded

B. tried

C. managed

D. sought

答案：

A. succeeded

B. tried

(答案→)C. managed

D. sought

解析：考查动词辨析。succeed in doing sth.=manage to do sth.“做成某事”。try to do sth.“尽力做某事”；seek to do sth.“探索做某事”。句意“起初，我怀疑他的能力，但最后他工作完成得很漂亮。”故选C。