根据对话内容及方框中所给的句子补全对话，选项中有二项是多余的。

A. What can you learn from it? B. Then what to do next? C. You often help the homeless people. D. What a good answer! E. What do you think is the first step? F. I think it's really a meaningful story. G. Good stories make people wise.

A: Have you heard of the story of Sima Guang?

B: Yes. We can learn a lot from it.

A: I agree with you.

B: It's important for us to keep calm in danger.

A:

B: Thanks. But I think the most important thing is to get away from danger.

A: I think so. Well! What will you do if there is a big fire?

B: Firstly, I will cover my mouth and nose with a piece of wet cloth.

A:

B: Stay calm and find the right way to get out of the fire.

A: You're right.

B: Yeah, that's always the truth.