11.   Astronauts activated two radar instruments hours after entering space and began working two shifts to keep the equipment operating around the clock.

12.   Bodies have had to work double shifts.

13.   ----- Relatives and friends also showed up at the door, often working regular shifts.

14.   After working double shifts for time off, he went to visit her in Houston.

15.   After working a shift as a rescue worker on Tuesday, he was called out on a possible heart attack downtown.

16.   Contractors are now working double shifts renovating a building in Fort Edward, not far from the most polluted areas.

17.   Dennis Alstott worked extra shifts at Best Environmental, a Joliet-based waste-cleanup company, to pay for his two sons to attend Joliet Catholic.

18.   For five years, he and his father worked overlapping shifts.

19.   For two years, mechanics worked shifts of four days on, three days off.