"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(摇摆) your school backpack，and jump into the waiting car. Inside, your friends say " hey" as one  of their parents drives you to school.      
Car pools (拼车) 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.
What do friends do in the car？    If you' re behind on your homework，this is your last chance to finish it before class. Some students simply add to their sleep time before classes begin.
Besides 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 (挤) into one. .
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.

A. parents may take turns to drive you all to school B. Think of how much gas that can save ! C. This is the daily car pool to school. D. Students can help each other on the way to school. E. It can also teach them the social consequences(影响) of being late. F. Car pools are becoming more and more popular in some countries. G. If you have no time for breakfast，you can have it in the car.