五、补全对话(5小题，每小题2分，共10分)
根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。
(On the street)
A: Excuse me, sir. I am a visitor in the city. I want to find a post office near here.
B: I'm sorry. I am new here. 71. .
A: Thank you all the same.
(At the police station)
A: Excuse me.
C: Yes? 72. ?
A: Well, I am a visitor in the city. I want to buy some postcards for my friends. 73. ?
C: Yes, there is. It's near the police station on New Street.
A: 74. ?
C: It's about 10 minutes' walk.
A: 75. ?
C: You can walk there. Go along King Street and then turn right at the first crossing. It's on New Street. The post office is on your right.
A: Thank you so much.
C: You're welcome.

71. You can ask the policeman over there（答案不唯一，合理即可）
72. What can I do for you（答案不唯一，合理即可）
73. Is there a post office near here
74. How far is it from here
75. How can I get there

本题考查七年级下册问路场景的日常交际用语，需结合对话上下文语境填写合适的句子：
71. 对方表示不清楚路线，可给出求助类的合理建议；
72. 警察接待求助者时，常用礼貌用语询问对方需求；
73. 根据下文的肯定回答，此处用there be句型的一般疑问句询问附近是否有邮局；
74. 根据下文关于路程的回答，此处询问邮局到这里的距离；
75. 根据下文的路线指引，此处询问前往邮局的方式。