I want to be a model student. What shall I do?

I should be polite. I should study hard. I should helpful. I should throw rubbish in the bin. I should be quiet in the liary. I shouldn’t walk and run on the grass. I shouldn’t throw rubbish on the floor. I shouldn’t run in the corridors. I shouldn’t fight. I shouldn’t be noisy in the liary.

我想成为一名模范学生。 我该怎么办?

我应该有礼貌，我要努力学习，我应该乐于助人。我应该把垃圾扔进垃圾桶，我应该在图书馆保持安静，不应该在草地上走路和跑，不应该扔垃圾在地板上，不要在走廊上跑不能打架，不能在图书馆喧闹。