阅读对话，根据对话信息，填写单词补全句子。每空一词。

Miss Sun: Good morning, class.

Class: Good morning, Miss Sun.

Miss Sun: Liu Tao, you are late.

Liu Tao: I'm sorry, Miss Sun.

Miss Sun: Come in and close the door.

Liu Tao: OK, Miss Sun.

Miss Sun: Don't talk in class, Wang Bing.

Wang Bing: Yes, Miss Sun.

Miss Sun: Now, open your English books, please.