问题
选择题
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
答案
答案：A
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。