题目内容：

A: You are using your mobile phone again while crossing the street.1.

B: No. What happened?

A: A girl was knocked down by a car because she was using her mobile phone.

B: 2.

A: As we all know, mobile phones make it easier for us to communicate with others.3.

B: You're quite right. I won't do it again. 4.

A: We shouldn't use them when we are driving. And we shouldn't talk on them for too long.

B: 5.

A: No, we can't. Using mobile phones isn't allowed on the plane.

B: Oh, I see.

 

A. Really? That's terrible!

B. Wherever you are, you see people use them.

C. Didn't you watch the news?

D. What else should we stop doing?

E. Can we use them while we are on the plane?

F. But at the same time, they can be very dangerous.

G. Are teenagers too young to own mobile phones?