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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 have saved their drivers from injury. D. It is better for vehicles to be pulled by horse than to be pushed by engine. B More than 20,000 drivers and front seat passengers are killed or seriously injured each year. At a speed of only 30 miles per hour it is the same as falling from a third floor window. Wearing a seat belt saves lives。 or you are making a local delivery or collection using a special vehi