根据对话内容，在每个标有题号的空白处填入一个适当的句子，使对话完整，合乎情景。
----Excuse me, sir.
----Yes?
---- 1_______________________
----The post office? Oh, go straight and turn right at the crossing.
----Thank you. 2_______________________
----No, not too far, about a twenty-minute's walk.
----Is there a bus going there?
----Yes. there is.
----Thank you. By the way, 3_______________________
----Yes, just opposite the post office.
----Do you mean the bank is opposite the post office?
----Right.
----Can I have my money changed there?
---- 4_______________________
----On more question, is the bank near to the department store? The largest one, I mean.
----Yes. In fact it's quite close.
----I see. 5_______________________
----It's my pleasure.
1. What's wrong (with you)? / What's the matter / trouble (with you)?
Is there anything wrong with you? / Anything wrong with you?
2. How long have you been like this?
3. Have you had／eaten anything this morning／for breakfast?
4. Nothing serious./ It's nothing serious./ No, it isn't.
5. Do I have to take some medicine?/ Must I take some medicine?
答案不唯一