The boss often the workers for 12 hours a day.
A. make, work
B. makes , to work
C. makes , work
D. make , working
网友回答
A. make, work
B. makes , to work
(答案→)C. makes , work
D. make , working
解析：C 考查使役动词make和主谓一致。The boss是单数，故用单数makes，“让某人做某事”make sb. do sth.，被动语态时要把to带上，即sb. be made to do sth.。