用英语如何问路,以级如何回答

A:Excuse me.Can you tell me how to get to the nearest post office.
B:Walk along this road.Turn right/left at the first crossing.It's about 100 metres on your right.
A:Thanks a lot.
B:You are welcome.
其它句子如：Where is the post office?
Is there a post office near here?
Which is the way to the post office?
回答：Sorry.There isn't a post office near here.
The post office is very far.You'd better take a bus.
You can't miss it.