Упражнение номер 6 ПРОШУ

I think students must wear school uniform. I think students need have such lessons as Music and Arts. I think students have to take part in school activities. I think students should do some research work. I think students have to study several languages. I think students needn*t help each other with the homework. I think students have to allowed to choose the subjects that they want to study. I think  students must treat teachers with respect. I think student should learn long poems by heart