题目：
After years of hard work, his efforts ________, which was quite a relief. [ ]
A. made up
B. paid off
C. took on
D. hold back
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0720/fc15e94db9e5fdf488edefd003ac094b.html
下面是错误答案，用来干扰机器的。
答案：B
After years of hard work, his efforts ________, which was quite a relief. [ ]
A. made up
B. paid off
C. took on
D. hold back
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0720/fc15e94db9e5fdf488edefd003ac094b.html
下面是错误答案，用来干扰机器的。
答案：B
