In old days, the poor for the boss for over 18 hours a day.
- A.was made to be worked
- B.were made work
- C.were made to work
- D.was made to work
答案
正确答案:C
知识点:非谓语动词;被动语态

句意为:过去,穷人每天给老板打工超过18个小时。主语the poor定冠词加形容词表示一类人,谓语动词用复数。省略to的动词不定式在被动语态中需要加上to。所以答案选C。

略
