The United States is full of cars. There are still many families without cars, 【小题1】 some families have two or more. However, cars are used for more than 【小题2】 (please). They are a necessary part of life.

Cars are used 【小题3】 business. They are driven to offices and 【小题4】(factory) by workers 【小题5】 have no other way to get to their jobs. Farmers have to drive into the city in order to get supplies. Sometimes small children must be driven to school. 【小题6】 some cities, school buses are used only when children live more than a mile away from the school. When the children are too young to walk too far, their mothers take 【小题7】(turn) driving them to school. One mother drives on Mondays taking her own children and the neighbors’ children 【小题8】well. Another mother drives on Tuesdays, another on Wednesday, and so on. This is 【小题9】(call) forming a car pool. Men also form car pools, with three or four men in turn driving to the place where they all work.

More car pools should be formed in order to put 【小题10】(few) cars on the road and use less gas. Parking is a great problem and so is the traffic in and around cities. Something will have to be done about the use of cars.

In Europe most capital cities with traffic problems 【小题1】(plan) in a time when there were no cars. The situation in central London, 【小题2】 drivers spent fifty percent of their time in queues, became 【小题3】bad that the local government decided to do something about it. The 【小题4】(solve) is simple: every car   【小题5】 (enter) the centre has to pay £5 a day. People who do not pay the charge will face 【小题6】 fine of £80. Many Londoners who are not happy with the idea think the congestion charge is expensive and limits their 【小题7】(free). But rich businessmen who work in the city centre and can 【小题8】 (easy) afford think the charge should be much 【小题9】 (high) to keep more cars out of central London. However, there are no plans 【小题10】(increase) the charge.

The railway line 【小题1】(connect) Beijing and Zhangjiakou, the co-host city of the Beijing 2022 Winter Olympics, is the world's first intelligent, high-speed railway. It 【小题2】(go)into operation on Dec 30, 2019. The railway is 174 km long, with a maximum design speed of 350 kph. It reduces the travel time between Beijing and Zhangjiakou from over three hours to 47 minutes. The train is designed with an area to store snowboards, a device to secure wheelchairs and a mobile news center 【小题3】 passengers can watch live Olympic broadcasts.