—Li Feng won the first prize in the national English competition.—Oh really？I’m glad that

问题补充：

—Li Feng won the first prize in the national English competition.

—Oh，really？I’m glad that her efforts at last.

A. worked out

B. got back

C. paid off

D. turned out

答案：

A. worked out

B. got back

(答案→)C. paid off

D. turned out

解析：动词短语辨析。A锻炼，制定出；B回去，追溯；C努力得到回报；付清；D结果是，原来是，证明是；结合句意可知C正确。句意：—李峰在全国英语大赛中获得了一等奖。—真的吗？我很高兴她的努力得到了回报。