问题
选择题
The workers were made ________for ten hours a day.
A．work
B．worked
C．working
D．to work
答案
答案：D
D 考查不带to的不定式，即使役动词。使役动词make的用法是：make sb. do sth.，在被动语态中，不定式to必须加上，即sb. be made to do sth.。故选D。“这些工人被迫一天工作10个小时。”