must.must n't

1. What you must not do? Interrupt in the middle.
2. What must I do? Do your exercises.
3. Can I talk in the class?No. you mustn't.
4. Can we drink dirty water? No. you must not.
5. Who must do his duty? everyone.
6. Can we fight and quarrel with each other? No. you must not.
7. Can I go to school late? No. You must not.
8. Can I sleep in the class? Yes. if the teacher is boring, but you Must not.
9. Must we pray God? Yes , you must .you must pray for everyone in this world.
10. What you must not do? You must not create problems.
11. ooooooooooooooooooooooooooooooooooo
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