【正文】
the driver must do all the things. In recent years, the speed of travel has increased greatly. With the increased speed es greatly increased danger. The driver of a powerful engine needs to be careful. A moment of being careless may cost a life. In order to drive today, a person must be able to see clearly, and he must learn and follow carefully the rules for safety on the road. Greater attention is the price we pay for using a machine instead of a horse. 16. The passage mainly talks about ______. A. engines B. safe driving C. using horses D. modern machines 17. The underlined word “propel” in the second paragraph means ______. A. repair B. raise C. push forward D. made 18. It can be inferred from the passage that ______. A. a driver must know the rules of safety B. a driver needs to be able only to tell red from green C. an eye test is an important part of a driver’s examination D. greater attention is needed for a driver while driving a machine 19. Which of the following is NOT true? A. A driver must be able to see and hear well. B. The driver of a ear must follow the rules of safety. C. Horses are known to