IV. Read the following article and choose the best option A, B, C or D for each question. Driving electric cars has several advantages and disadvantages. Electric cars cause fewer emissions. They also provide personal space for drivers to relax when they feel exhausted on the road. Some think electric cars do not have any disadvantages. But the truth is different. Firstly, the cost is not as reasonable as traditional cars. Drivers need to spend a lot of money on electricity, so the car can work. Secondly, on occasions like field trips, drivers cannot travel far distances because batteries of electric cars only last for 100-160 kilometers. There are also no or few electricity stations for drivers when car batteries die. This is not as convenient as traditional cars. Traditional car drivers can easily stop and buy gas from gas stations. Thirdly, it can be time consuming to generate electricity for cars each time drivers go out. It takes between 6 and 8 hours for the car to finish. 21. Electric cars cause ____. A. no damage to the environment B. more damage to the environment C. less damage to the environment D. the most damage to the environment 22. Costs for electric cars are ____. A. as low as traditional cars B. as high as traditional cars C. less reasonable D. too unreasonable 23. Electric cars are not a good choice for long distance journeys because ____. A. electric car batteries are expensive B. there are no electricity stations for drivers C. electric car batteries can only travel over 100 kilometers. D. electric car batteries cannot travel over 160 kilometers. 24. It can take ____ to generate new electricity for a car. A. 7 hours B. 9 hours C. 5 hours D. 2 hours 25. This article mainly writes about ____. A. the advantages of electric cars B. the reasons why drivers should buy electric cars C. the advantages and disadvantages of electric cars D. the the comparison between electric cars and traditional cars