A：What’s the matter with you?

B：小题1:

A：How long have you been like this?

B： 小题2:

A：That sounds terrible!

B：The chemical factory produces terrible gas. The bad air makes my chest hurt. Please read this article.

A： 小题3:

B：It’s about air pollution in China. Today，air pollution has become a serious problem.

A： 小题4: What should we do as a student?

B： 小题5:

清紫禁城“五门”依次为 * * 、端门、午门、神武门、乾清门。