41.   The problems arise because old age is a period of increasing dependency - materially, physically, socially and emotionally.

42.   The problems arise quickly, though, when the cast are, as so often, essentially stereotypes.

43.   The problems arise when their activities interfere with the freedom of other hill users.

44.   The problems here often arise in the area of speed - how quickly can the technical-Market combination be put together.

45.   The real problems arose when that something was unobtainable.

46.   The same problem arose later when the crew had transferred over to the lunar module.

47.   Their acquisition takes time, problems arise, children become puzzled, and they have to consider possibilities and alternatives.

48.   Their problems arise because their love lives are as frustrating as their professional lives are rewarding.

49.   There used to be a lot of disputes over land boundaries but nowadays such problems scarcely ever arise.

50.   These problems often arise in work situations.