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Traffic in Our Cities The volume of traffic in many cities in the world today continues to expand. This causes many problems, including serious air pollution, lengthy delays, and the greater risk【C1】______accidents. Clearly , something must be done, but it is often difficult to persuade people to【C2】______their habits and leave their cars at home. One possible【C3】______is to make it more expensive for people to use their cars by【C4】______charges for parking and bringing in tougher fines for anyone who【C5】______the law. In addition, drivers could be【C6】______to pay for using particular routes at different times of the day. This system, 【C7】______as "road pricing" , is already being introduced in a【C8】______of cities, using a special electronic card【C9】________to the windscreen of the car. Another way of【C10】______with the problem is to provide cheap parking on the【C11】______of the city, and strictly control the number of vehicles allowed into the centre. Drivers and their passengers then use a special bus【C12】______for the final stage of their journey. Of course, the most important【C13】______is to provide good public transport. However, to get people to give【C14】______the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares【C15】______at an acceptable level.
单选题16.【C1】
【正确答案】
A
【答案解析】考查介词搭配。risk与of搭配，risk of accident意为“事故风险”。故选A