Question

How many men does your uncle _____ for him?

A．have worked

B．have to work

C．have working

D．have been working

Answer 1

C

考查时态。句意“你叔叔让多少人来为他工作啊？”have是使役动词，have sb. do sth.“使某人做某事”；have sb. doing sth.“使某人一直做某事”。根据四个选项可知，C项符合题意。故选C。