The athlete’s years of hard working when she finally won the Olympic gold medal.A. went o

问题补充：

The athlete’s years of hard working when she finally won the Olympic gold medal.

A. went on

B. got over

C. paid off

D. ended up

答案：

A. went on

B. got over

(答案→)C. paid off

D. ended up

解析：句意：当这运动员最后赢得金牌时，她的多年的艰苦付出终于得到了回报。go on继续； get over克服；pay off取得成功；end up结束。根据句意故选C。