请你根据上下文和首字母提示完成对话。(6%)
It’s one forty in the afternoon. The students and Mr Green are having an English class (在上英语课).  
Mike:    Sorry, Mr Green. I’m late. M__________ I come in?
Mr Green: C_________ in, please.  D________ be late again.
Mike:    Yes, Mr Green.
Mr Green: Now o__________ your books, boys and girls.
Students:  O__________.
Mr Green: Now r__________ the new words, please.
Lin Tao:  All right.