71.   Both have pushed up against a lower limit which is, I believe, economic in character.

72.   Both sides firmly believe that a peace settlement is now possible.

73.   Both speakers believe that active government intervention in the housing Market is now urgently needed before things get even worse.

74.   Buller said he and his partner believe there are now enough home computer users to make their service a viable business.

75.   But disabled people believe the biggest obstacles they face are mental ones-the prejudices and thoughtlessness of able-bodied people.

76.   But experts now believe that the genes we inherit also play a vital part.

77.   But families believe in their myths for reasons more compelling than respect for the versatility of metaphor.