11.   Both theoretical and practical problems exist in fashioning out conceptual frameworks for the development of the continent.

12.   But cancer survivors, medical practitioners and attorneys agree that discrimination against workers with illnesses exists in the workplace.

13.   But lions and elephants exist in other zoogeographical regions, too.

14.   But she found that the only refuge for her was the same refuge that existed in her much smaller house.

15.   But there is a second, more local, level at which substantial differences exist in unemployment rates.

16.   Children who are very passive and uncommunicative should alert us to the possibility that problems exist in the life of the family.

17.   Different patterns of behaviour exist in different cultures.

18.   Electorally, Labour has almost ceased to exist in those counties.

19.   Equal opportunity legislation exists in most advanced countries but this is not yet reflected in equal pay rates.