Work in pairs. Are there any rules in your family or things that you or your parents think are necessary? Share them with your partner. Use must, have to, and should. Example: A: I have to be back home by 9 p.m. B: Really? I don't have to. But my parents think I shouldn't stay out after 10 p.m. Đặt giúp mình 3, 4 câu với must, have to, and should vs ạ