11.   The War drained men from many schools which then experienced great difficulty in maintaining staffing levels.

12.   When Alexander came to correct his problem, however, he began to experience great difficulties.

13.   Women and non-whites are likely to experience particular difficulty.

14.   The company is experiencing some difficulty as competition heats up.

15.   Under such circumstances, it is little wonder that they experience difficulties.

16.   The UK jewellery market has had a very tough year and many customers and competitors have experienced difficulties.

17.   Visually handicapped people sometimes experience difficulty in distinguishing similar products and so Tesco has introduced braille where possible on products like household cleaners.

18.   Colleges were experiencing great difficulty in finding industrial placements for students.

19.   In the survey mentioned above, the health sector was second only to mechanical engineering in the proportion of employers experiencing difficulties.

20.   Cnut thus lost the control over Norway enjoyed by his father, and Olaf conceivably had some connection with whatever early difficulties he experienced in Denmark.