21.   Her mother worked two shifts at Phoenix Memorial Hospital.

22.   He worked extra shifts on private ambulances to save for a new fence and a pool.

23.   His fellow bartenders at the Dublin Pub have worked his shifts for him, donating their pay to an education fund set up for Jake.

24.   However, he said some managers charged with overseeing operations are not limited by hours of service restrictions and could be working longer shifts.

25.   I have been assured that they will work double shifts if they have to to get it done.

26.   In the most heavily radioactive tunnels, by contrast, miners were able to work shifts of only an hour and a half a day.

27.   Investigators need to find out whether emergency braking systems are adequately tested, and whether drivers are being asked to work reasonable shifts and are adequately trained and monitored.

28.   Law enforcement officials say that officers who work steady shifts have more opportunities to develop illicit relationships in the community and among themselves.

29.   Los Angeles Police Department Lieutenant Ruben Martinez said police personnel are working overtime shifts to enhance security.

30.   Many volunteered to work double shifts to clear and settle trades.