![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
听下面一段对话,回答1-3三个小题。 1. What does the speaker think about the causes of the car accidents? [ ] A. The causes are serious problems that are difficult to solve. B. The causes are not well understood. C. The causes are clear to see. 2. What have people done to reduce accidents? [ ] A. They have improved public transportation. B. They have trained drivers more strictly. C. They have improved roadway design. 3. What are people paying attention to today? [ ] A. Designing better cars. B. Making more aware of (意识到) the traffic problems. C. Building more roadways.