A: You are using your mobile phone again while crossing the street.【小题1】
B: No. What happened?
A: A girl was knocked down by a car because she was using her mobile phone.
B: 【小题2】
A: As we all know, mobile phones make it easier for us to communicate with others.【小题3】
B: You're quite right. I won't do it again. 【小题4】
A: We shouldn't use them when we are driving. And we shouldn't talk on them for too long.
B: 【小题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?