11.   Jeff and David were in the back yard setting off fireworks.

12.   Set off the look with a pair of high spiked heels.

13.   She stopped for a moment to brush the dust from her hands and clothes and set off back to the house.

14.   Some of these issues set off fewer alarm bells today and perhaps for most of us they are of less social concern.

15.   Soon after setting off we came to a forested valley along the banks of the Gwaun.

16.   The bus set off first and we followed on behind in the car.

17.   The next morning we set off northwards.

18.   These neutrons are setting off alarms all round your cerebral hemispheres.

19.   These questions set off fierce debate among cleaning experts.

20.   We repair to the kitchen and blithely set off the burglar alarm searching for the cat to cuddle.