11. She dedicates herself to her work. She is such a dedicated teacher that her efforts will .
A. pay off
B. be fed on
C. pay back
D. be given back
网友回答
(答案→)A. pay off
B. be fed on
C. pay back
D. be given back
解析：考查短语辨析。pay off 还清，得到回报，be fed on 以什么为食，pay back 偿还，be given back 归还，句意：她专心于她的工作，她是一个如此专心的老师以至于她的努力会得到回报。所以选A。