题目内容：

The boss had them_______from morning to night.
A.worked
B.working
C.work 请说明为什么,请问这里用了什么句型?
记得是:have sb.什么 sth.

优质解答

这种词组有好几个 需要辨析
have sb do sth 让某人做某事
have sb doing sth 让某人一直做某事
have sth done 让某事被（别人）做
根据题意 显然 这题选B