题目内容：

Dear school parents,

We are happy that you are spending the time talking to your children about the importance of school bus safety (安全). The school bus is one of the safest forms of transportation, but every year children are injured (受伤的) in school bus accidents (事故) all around the world.

Education is the key to prevention (预防). During National School Bus Safety Week each October, we organize (组织) an event called “Operation Safe Stop”. We need your help to tell the children about the basic school bus safety rules (规则). Please take some time to speak to your children about the following school bus safety rules:

►Be on time.

►Never run to or from the bus.

►Don’t push or shove (乱推) on the bus.

►Stay in your seat on the school bus.

►Don’t yell (喊叫) or speak loudly on the bus.

►Always obey (服从) the driver.

►Always cross at least 10 feet in front of the bus.

►Never crawl (爬行) under a school bus.

根据所给短文，选择最佳答案。

1.This letter is written to ______.

A. school teachers    B. school parents    C. bus drivers    D. students

2.The underlined word “key” means ______ in Chinese in the passage.

A. 钥匙    B. 基础    C. 关键    D. 答案

3.National School Bus Safety Week is open in ______.

A. September    B. October    C. November    D. December

4.What do you know about school bus safety rules?

A. Students should stay in their seats on the bus.

B. Students should listen to the teacher but not the driver.

C. Students can’t shove but they can shout on the bus.

D. Students can be late for the school bus.

5.From the passage, we can learn that ______.

A. school bus safety is the safest form of transportation

B. this passage is mainly about school bus safety

C. you can read ten school bus safety rules in the passage

D. National School Bus Safety Week was held every two years.