21.   We usually knock off work at about twelve on Saturday.

22.   You ought to get into the habit of planning your work at the beginning of each week.

23.   Jo has completely taken up with work at the moment.

24.   He left work at the usual time.

25.   I was out of work at the time.

26.   I often start work at the crack of dawn when there is a big order to get out.

27.   Dr Hoffman did his postgraduate work at Leicester University.

28.   I never did a stroke of work at college.

29.   Volunteer work at the hospital.