Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Criticism

The volume of traffic in many cities in the world today continues to expand. This (22) _______ many problems, including serious air pollution, lengthy delays, and the greater risk (23) _______ accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.

One possible approach is to make it more expensive for people to use their cars be increasing charges for parking and brining in tougher fines for anyone who (24) _______ the law. In addition, drivers could be required to pay for using particular routes at different times of the day. This system, also known as ‘road pricing’, is already being introduced in a number of cities, using a special electronic card (25) _______ to windscreen of the car.

Another ways of dealing with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the centre. Drivers and their passengers then use a special bus service for the final stage of their journey.

Of course, the most important (26) _______ is to provide good public transport. However, to get people to give up the comfort their cars, public transport must be felt to be reliable, convenient and comfortable, with fares charged at an acceptable level.