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。)