从方框中选择合适的句子补全对话, 其中有一项是多余的。

A. Thank you so much.          B. Is there a post office near here? C. The post office is on the left.      D. How can I get there? E. How's it going?            F. How long does it take to walk there?

A: Excuse me, sir.

B: Yes? How can I help you?

A: Well, I'm new in town.

B: Yes, there is.

A:

B: Walk down this road, and turn left when you see a bank.

And it is just across from a cinema. You can't miss it.

A: I see.  

B: About ten minutes.

A:

B: You're welcome.