Jenny works hard as usual and it has．She got the first in the final exam again．A. showed o

问题补充：

Jenny works hard as usual and it has．She got the first in the final exam again．

A. showed off

B. paid off

C. paid back

D. turned up

答案：

A. showed off

(答案→)B. paid off

C. paid back

D. turned up

解析：本题考查动词词组辨析。A．show off炫耀 B．paid off在此是回报的意思 C．paid back还掉D．turn up出现。根据句子意思：Jenny像平常一样努力工作，并且期末考试又考了第一，她得到了回报。所以应选B。