问题补充:
Ling Feng won the first prize in the national English competition and 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:pay off:偿还,偿清,回报,努力付出终有回报,故选C。