11.   A dog barked and was answered by another.

12.   A dog barked, then stopped.

13.   She rang the bell, and the dog barked.

14.   A report in New Scientist magazine suggests that dogs bark because they never grow up.

15.   The domestic dog is thought to have evolved from the wolf, yet wolves and other wild dogs bark about as often as they appear at Crufts.

16.   A dog barked and they heard laughter from the kitchens.

17.   Somewhere in the distance a dog barked mournfully.

18.   When your dog barked, the other dog will bark again.

19.   At midday, dogs bark as smoke billows from industrial plants and huge trucks rumble by, kicking up dust and blowing litter flat against wire fences.

20.   Because our house has an open floor plan, and because the dog barked incessantly when we tied her outside on her run, see it we did.