填入一个适当的词补全对话，每空一词。

A: Excuse me. Could you tell me theto Harbin: West Railway Station, please?

B: Sure. It's very far from here.

A: How can I get there?

B: Let me see. You'dtake the Subway Line 3.

A: How long does itto get there?

B: About half an hour.

A: Is there a subway station near here?

B: Yes. Go along the street. Turn left at the first crossing. It's on your left. You won'tit.

A: I see. Thank you very much.

B: welcome.