英语好的朋友请进``很简单的问题``

这些是我的强项啊：
we should be allowed.............
We should be allowed to play after class.
We should be allowed to have free time to do something we like.
we should be allowed to ask the teachers questions at any time.

wo shouldn't allowed.............
We shouldn't be allowed to talk in class.
We shouldn't be allowed to copy other's homework.
We shouldn't be allowed to be late for class.
和
we must do............
We must do our homework ourselves.
We must come to shcool on time.
We must be on duty carefully
We must help with each other and learn from each other.