Today, there are so many people have cars because of the development of ecnomy. Unlike many years ago that car is too expensive to buy, now people treat car as a necessary vehicle. What’s more, cars are no longer too expensive to buy. As a result, people need to have driving license, so they can drive on the road. Around these years, there are a lot of people to take the test of the driving license, even when one finds a job, the employer will ask if he has a driving license. It seems that ha...