NARRATOR：

Now listen to two students discussing the letter.

MALE STUDENT：

Ellen, you drive to campus, right?

Did you see this letter in the paper today?

FEMALE STUDENT：

Yeah, I did. I think it makes a lot of sense.

So it'd be great if the university starts something like that.

MALE STUDENT：

OK...

FEMALE STUDENT：

Well, now I drive to campus all by myself and buy gas now and then.

It isn't much each time I fill the tank, but it adds up.

MALE STUDENT：

I'm sure.

FEMALE STUDENT：

So a program like that would really help students.

They'd spend less on gas. And it's not just gas, either . . . it's also the wear and tear on the car.

I mean, the more you use a car going back and forth all the time the more you have to do maintenance and repairs.

MALE STUDENT：

Right. But do you think the program would have that other benefit?

FEMALE STUDENT：

I do... because there've been a lot more people coming into the city. So, there's much more traffic now than before.

And all the carbon dioxide that comes from all those cars on the road is polluting the environment more and more.

MALE STUDENT：

So with this program...

FEMALE STUDENT：

Right, there'd be less carbon dioxide pouring out into the air.

And this would reduce environmental pollution and the air quality would certainly improve.