(2012·济南高二检测)—Mum, I can’t see any point in studying hard.
—Come on, dear. Years of hard study will surely in your future career.
A. make sure
B. pay off
C. bring back
D. pay back
网友回答
A. make sure
(答案→)B. pay off
C. bring back
D. pay back
解析： B 本题考查动词短语。答句句意：多年的努力一定会让你在未来的事业中取得成功。pay off取得好结果，取得成功；还请；偿还掉；make sure确保，确信；bring back带回来；pay back偿还。