根据对话内容，从下面方框中选出恰当的句子补全对话。

A. It sounds terrible. B. I had a fight with my brother. C. Anyway, you're older than him. D. I couldn't stand that and shouted at him. E. But I don't know what I should do now.

A: You look unhappy. What's wrong with you?

B:

A: Why?

B: He talked to me while I was reading.

A: And then?

B: And then he shouted at me. So we fought each other.

A: You shouldn't do that to your brother.

B: I know.

A: You should say sorry to your brother. You are a family.

B: I think you're right. I will say sorry to him tonight. Thank you.

A: You're welcome.