问题补充：
Li Ming won the first prize in the English speech contest and I’m glad that his efforts at last .
A. paid off
B. worked out
C. got back
D. turned out
答案：
(答案→)A. paid off
B. worked out
C. got back
D. turned out
解析：动词词义辨析题。paid off 有回报 B. worked out 计算 C. got back 取回 D.turned out 结果是句意：李明英语演讲得了第一名我很高兴他的努力取得了回报。根据语境选A
