题目内容：

    ①" Beep, beep," goes the car horn(喇叭). You've got dressed, but you've not had time to eat breakfast. You run out of the front door swinging your school backpack, and jump into the waiting car. Inside, your friends say "hey" as one of their parents drives you to school. This is the daily car pooling(拼车)to school.

② Car pools are a common way of transportation for many students in the US. You, along with many of your friends can fit in the car, and share the journey to school each day. Parents may take turns to drive you all to school. Here are some good points that may catch your eyes.

③ What do you do in the car? If you have no time for breakfast, you can have it in the car. If you’re behind on your homework, this is your last chance to finish it before class. Some students simply add their sleep time before classes begin.

④Besides walking or cycling to class, car pools are energy efficient(节能的), if you can't take the school bus. Instead of four cars taking four students to school each day, they can all squeeze into one. Think of how much _____▲______that you can save!

⑤ More importantly, car pooling teaches students valuable life lessons not taught in class. It can teach students about the social responsibility of being on time. If you’re late, then all of your friends will be late, too.

1.Paragraph 1 mainly talks about ____________·

A.what car pooling is like B.how interesting car pooling is

C.where students get on the car D.who drives students to school

2.Students can ____________during car pooling.

A.get dressed and make breakfast B.swing the school backpacks

C.finish the rest of homework D.take turns to drive the car

3.Which is the best to fill in“_________________”?

A.room B.time C.money D.homework

4.What is the structure(结构)of this passage?

A. B. C. D.