31.   All of us have an informal way of speaking when we are with friends and in social settings.

32.   All that mattered was the retention of an active way of life that would maintain the stimulus to individual self-development.

33.   All these spikes evolved originally as a way of preventing predation by larger fish.

34.   All you need is a clean water-supply and an efficient way of getting rid of human excrement.

35.   Almost without knowing it, they have begun to invent a radically different way of doing business in the public sector.

36.   Although equations are a concise and accurate way of describing mathematical ideas, they frighten most people.

37.   Although it has now become a way of life, I still find it disturbing.

38.   American scientists have come up with an ingenious way of getting rid of cockroaches.

39.   An alternative way of looking at higher education is to see it as a continuing process in the reproduction of gender relations.

40.   And it invites the conclusion that rhodopsin-like compounds are a particularly favoured way of going about light detection in the animal world.