从方框中选出最佳选项。（方框中有两个选项与对话内容无关）

Girl: Excuse me. Could you tell me how to get to the nearest post office?

Boy: Sorry, I'm new here.

Girl: OK. Thank you all the same. Excuse me. Could you tell me the way to the nearest post office?

Policeman: Sure. Go along this street, Then turn right at the second crossing, and you will see a bank on your left. Go past the bank and then turn left onto Fifth Avenue. At the end of the street, you'll see the post office.

Girl:

Policeman: Yes, you can.

Girl:

Policeman: You can take the No.45 bus.

Girl: Thank you very much.

Policeman:

A. Please ask the policeman over there. B. Which bus shall I take? C. I don't know. D. Can you go with me? E. Can I take a bus to get there? F. It's my pleasure. G. I can't help you.