I did that work on the orders of my boss.
work on I will do that work on condition that I get paid for it.
work on Women work on equal terms with men in this firm.
work on In this firm women work on equal terms with men.
work on Jim is at work on his car.
work on The switch didn't work on time.
work on We never work on Sunday.
work on I do a lot of work on the school newspaper.
work on You ought to get to work on time.
work on Need you work on Sunday?