英语小问题?谢谢帮助!

英语小问题?谢谢帮助!
Attention,please!I have a few things to tell you .When you have lessons in the language lab,remember the rules________English listening class.
Don't be late for class.If you______(come)two minutes later,the teacher_______(not let)you in.
Chanhe your shoes before entering the lab .If you don't do that,the floor in the lab_______(be)dirty.Don't run or_______(fight)in the lab.If you do that,the teacher________(ask)you to go out.
Don't bring anything here_______your textbooks.And don't eat in the language lab.(96)If you do those,the teacher will ask you to leave.
When you are in.please don't touch the machines________permission.(97)Don't listen to music in the language lab.If you do those,you will have to leave.
Always do _______the teacher tells you to.In class you should only speak English,not Chinese.If you don't do that,the teacher will be unhappy.
When class is over,turn off your machines and leave the lab one_______one.If you don't do those,perhaps the machines will be broken.And you will be fined.