补全对话

A: Excuse me. 1

B: I'm sorry . I don't know . 2

A: Excuse me, could you tell me the way to the nearest post office?

B: Yes? Take a No. 2 bus. 3

A: Thank you very much.

After getting off the bus.

A: Excuse me, can you tell me 4 , please?

B: Yes. Walk down this road, and turn to the left at the first crossing. then walk on a few yards, and there you are.

A : 5

[　　]

A．You'd better ask that policeman over there.

B．How can I get to the nearest post office?

C．Is there a post office near here?

D．How to get to the post office?

E．Thanks.

F．Get off at the zoo and you'll find the post office.

G．It's about a few yards down this street .