Ⅳ. Complete the dialogue.（补全对话。）
根据下面的对话情景，在空白处填入一个适当的句子，使对话的意思连贯、完整。
(Two students are talking about Li Ming’s hometown. )
Bruce: Hi, Li Ming. 1.
Li Ming: I am looking at some photos of my hometown.
Bruce: 2.
Li Ming: Yes. I took them myself when I went to my hometown last week. It has changed a lot!
Bruce: Like what?
Li Ming: 3.
Bruce: That’s great. The clean river can make your village more beautiful, right?
Li Ming: Yes. And people are much richer than before. Many people can travel in their own cars now.
Bruce: 4.
Li Ming: They used to travel by bike or by bus. They are now really happy about the changes.
Bruce: Do you go to your hometown every week?
Li Ming: No, not really. 5. Maybe you can go with me next time.
Bruce: Great! I can’t wait to see the beautiful views there!

1. What are you doing?/What are you looking at? 2. Did you take these photos yourself? 3. The river used to be dirty but now it is clean and clear./The river is much cleaner than before. 4. How did they use to travel? 5. About twice a year./I go there about once a month./...