His three years of hard work — he did a good job in the 2012 NMET and was admitted into a

His three years of hard work — he did a good job in the 2012 NMET and was admitted into a key university.
A. turned out
B. ran out
C. paid back
D. paid off

A. turned outB. ran outC. paid back(答案→)D. paid off解析：考查词组意思，turned out意思“出席”，ran out意思“用完”， paid back意思“偿还”，paid off意思“取得成功”，句子意思“进过三年的刻苦学习，终于在2012年全国普通高校入学考试并被一所重点大学录取的了成功”，所以选D

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