七年级上册英语对话老师让我们自己编对话 范围在一单元到七单元之间 我该怎么编啊

• A: Can I help you?
• B: Yes, please. I need a pair
of shoes for school.
A: What color do you want?
B: White.
• A: What about this pair?
• B: It looks nice. How much is it?
• A: It’s fifteen dollars.