i want to be a model tudent. what hall i do? i hould be polite. i hould tudy hard. i hould capful and helpful. i hould walk in the corridor. i hould throw rubbih in the bin. i hould be quiet in the library. i houldn’t walk and run on the gra. i houldn’t throw rubbih on the floor. i houldn’t run in the corridor. i houldn’t fight. i houldn’t be noiy in the library.