补全对话

A: You are using your mobile phone again while you are crossing the road.

Haven't you heard about the news?

B:   What is it about?

A: A girl died in the lift because she was playing her mobile phone then.

B: Really? So terrible.

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

But   they bring us so many problems.

B:   I won't do it again.  should we pay attention to?

A: I don't think we should use them when we are driving, either.

B:while we are on the plane?

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

B: I see. We shouldn't talk on the phone for too long.