补全对话

A. Yes, it's very far. B. What else can we do? C. What's the matter? D. I think so. E. You're welcome. F. It's about 10 kilometres away. G. How long have you been like this?

A: Hello, Frank.

B: Hello, Bob. You don't look well.

A: I've got a terrible cough, and I cough all day and night.

B: I'm sorry to hear that.

A: For about 2 weeks. The doctor said the cough was mainly caused by air pollution. I think we should do something to protect the environment.

B: What should we do?

A: We'd better drive cars less and walk to work more often.

B: But my home is far from my workplace.

A: How far is it?

B:

A: Why don't you take a subway to work?

B: You're right! From now on, I'll do as you said.

A: We can plant more trees.

B: OK! Let's do it!