4. According to the text, which of the following people riding in the front does not have to wear a seat belt?

　　A. Someone who is backing his car.

　　B. Someone who is picking up children in local schools.

　　C. Someone who is delivering or collecting letters.

　　D. Someone who is engaged in medical research.

　　5. The possible results of not wearing seat belt without excuses are followings except .

　　A. falling into illness

　　B. paying fine

　　C. being accused

　　D. being injured or killed

　　译文

　　每年都有超过3万名司乘人员重伤或死亡。以每小时30英里的速度行驶相当于从三楼坠落。系安全带可以挽救生命; 这样做可以将死伤的可能性降低一半。

　　因此驾驶员或年龄超过14岁的前排乘客务必系上安全带，否则会受到高达50英镑的罚款。当然，驾驶员并不确保你系安全带，但是，驾驶员有责任确保14岁以下的乘客如果不系安全带就不能坐前排。

　　然而，以下情况下你不必系安全带：倒车时、用专用车辆在本地收发邮件、有医学证明证明你有理由不系安全带。在选择不系安全带的时候一定要确保以上情况实用于你。请记住：如果你不能证明你有理由不系安全带，你有可能遭到起诉并受到罚款。

　　参考答案：B C B A B