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36. C (This causes many problems, including serious air pollution, lengthy delays, and the greater risk of accidents)

37. A (One possible approach is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who breaks the law)

38. A (......by increasing charges for parking and bringing in tougher fines for anyone who breaks the laws)

39. C road pricing (One possible....This system, known as "road pricing", is already being introduced in a number of cities, using a special electronic card fixed to the windscreen of the car)

40.  B (However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable...)