读一读。选择恰当的句子补全对话。

A. Are there any buses going there? B. Walk along the street for half an hour. C. When does the next bus come? D. Is this the way to Green Hill? E. You can get to the hill at that time if you walk.

Ken: Excuse me.

Mary: Yes.

Ken: Is the hill very far from here?

Mary: No, not very far. You can see it in front of you.

Ken:

Mary: Oh, yes. But the buses don't come very often.

Ken:

Mary: At about half past seven.

Ken: Well, I can't wait so long for a bus. I'm happy to walk there. Thank you very much.

Mary: You're welcome.