急!急!编写英语对话

我编了一个对话.不知够长吗?

一位音乐老师捡到一把小提琴,询问班上同学这是谁的,不要太短了哈`~要用上:must be ,might could can't等
最好多用些短语,水平不要太低了`~谢谢咯
人物: 音乐老师 music teacher(M), 众学生students
地点: 教室(in a classroom)
M: Excuse me, I found this nice violin in the lunchroom. Does this belong to anyone here?
Student A: It’s not mine.
Student B: I don’t know.
Student C: It might belong to somebody next door.
M: I just asked the students next door. Well, if nobody claims it, then I will take it back to the Lost and Found of the Music Department.
Student A: wait a minute. Let me take a closer look. This must be Wang Xia’s violin.
Student B: How did you know?
Student A: Look at the violin case. There is a nice jingle bell on the handle. When Wang Xia passed by our classroom yesterday, I was very curious about where the nice sounds came from. She was holding up her violin high and showed me the jingle bells.
Student C: Yes, it can’t be wrong. I saw Wang Xia carry it t