5.He is often made ____for twelve hours a day by the boss. A.work B.working C.to work D.works

5.He is often made ____for twelve hours a day by the boss. A.work B.working C.to work D.works
选啥?理由……
5.He is often made ____for twelve hours a day by the boss.
A.work B.working C.to workD.works