问题补充：
----Li Feng won the first prize in the national English competition.
----Oh, really? I’m glad that his hard work 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：词组辨析题。Work out 计算出 get back 取回 pay off取得回报 turn out结果是“李峰在全国英语比赛中得了第一”“真的吗？很高兴他的努力终于有了回报”选C
