11.   The other unit stayed behind to form a second wave.

12.   This would involve staying behind after office hours to empty some bins and hoover around a bit.

13.   Those who stay behind spend their time looking for jobs, playing office politics or simply nursing their wounds.

14.   Two sergeants and I stayed behind to try to salvage as much as we could of our stores of food.

15.   As a punishment, several of the children had to stay behind after school.

16.   She stayed behind at the office, ostensibly to work.

17.   Scotty stayed behind to fix lunch.

18.   Many people have stayed behind in the potential war zone.

19.   Carmen stayed behind in the dark, sunless room.

20.   A small group of youths stayed behind to heckle and shout abuse.