Ответ:
1) – Sir, 1)May I come in?
- No, you may not. You are late. You 2)must come to class earlier.
2) – Tom, 3)Can you help your mother now?
- Yes, dad. By the way, I always help her. I know that children 4)should help their parents.
3) – Jane, your granddad is ill. He is in hospital. You 5)should visit him. 6)Can you do it today?
- No, mum, I 7)can't. I’ll go there tomorrow.
Объяснение: