Accident-based maintenance leads to high maintenance costs.

Questions 22～25 are based on the following passage. Who was injured in the accident A: Nobody. B: The bus driver. C: Paul. D: The two girls.

Questions 22～25 are based on the following passage. Where was the driver of the sports car when the accident happened A: In the supermarket. B: In the garage. C: At the foot of the hill. D: Inside the car.

Questions 15 to 18 are based on the passage you have just heard. What was the time of the accident A: 2:05 am. B: 8:45 pm. C: 8:45 am. D: 4:45 am.

― _____ An accident has happened. A. Where was the accident? B. What happened? C. When was the accident? D. Why did it happen?

这起事故必须仔细调查。译文：________________________________. A: The accident must investigated carefully B: The accident must be investigated carefully C: The accident must investigating D: The accident must be investigating

—————————— is not clear. A: what caused the accident B: what did cause the accident

There was a serious accident yesterday. Do you know which driver______ the accident?

Questions 12 to 15 are based on the conversation you have just heard. 12题选（）. A: He saved a baby boy's life B: He wanted to be a superhero C: He prevented a train crash D: He was a witness to an accident

Questions 3 and 4 are based on the news report you have just heard. 4题选（）. A: They tried hard to repair the elevator B: They released the details of the accident C: They sent supplies to keep the miners warm D: They provided the miners with food and water