31.   Up and down hill fences pose problems for the horse by placing a premium on balance and impulsion.

32.   Working in prisons, with the need for round-the-clock supervision poses particular problems for women who also carry traditional domestic responsibilities.

33.   I asked whether her closeness to her mother ever posed any problems.

34.   His ill health poses serious problems for the future.

35.   These may in turn pose problems as regards the maintenance of social order.

36.   River pollution, destruction of heathlands, moorlands, hedgerows and estuaries and illegal shooting, trapping and poisoning all pose increasing problems for birds.

37.   In general, less than complete allocations of taxes and benefits, whether matched in size or not, pose problems.

38.   This was a region which posed particular problems for medieval kings of England.

39.   The transportation of chilled foods from the point of production to the point of sale has posed problems for a great number of catering supply companies.

40.   However the lack of any structure may initially pose problems for teachers who have not covered history before.