91.   He spoke generally of the problems of rural areas and less-favoured areas.

92.   He still faced the thorny problem of finding a way out of the Jungle.

93.   He would prefer to turn a blind eye to the problem of asylum seekers around the world.

94.   He would solve the problem of the lack of a lavatory by using a bucket in the unused part of the attic.

95.   Henceforth this system provided the framework for his preoccupation with the problems of the extinction and origin of species.

96.   Here we are concerned with the larger problem of the relationship between men as a class and other animals as a class.

97.   Here we return to the theoretical problem of how the other can be articulated as such.

98.   Here were the seeds of the twentieth century problem of acid rain and other crises besides.

99.   Higher environmental standards have to some extent highlighted the problem of offensive odours.

100.   His interest was in solving the problem of how to make it.