根据对话内容，在横线上填写恰当的句子，使对话完整准确。
A: Excuse me, where is the nearest hospital?
B:     . You'd better ask the policeman over there. He may know.
A:     . (Go to the policeman)
A: Excuse me, which is the way to the nearest hospital?
C: Go down this street, turn left and walk on until you reach the end. And you will see the hospital. It’s between the post office and the fruit shop. You can’t miss it.
A:     ?
C: It’s about thirty minutes，walk.
A. It，s too far away from here.   ?
C: Yes, you can go there by bus. The bus stop is over there, on the other side of the road. A: I see. Thank you very much.
C: .