问题
选择题
They no longer have to ______ large numbers of temporary workers to do the harvesting.
A．take on
B．hire on
C．work on
D．carry on
答案
答案：A
首先我们要知道这四个词组的意思take on呈现，雇佣，等意思根据句意可知应为雇佣，所以A正确；B.hire on看似符合句意，实际没有这种用法应将on 去掉；C.work on从事；D.carry on执行的意思，综上选A.