Réponse:
Ex 2 : You must get up!
You mustn't stay in bed late!
You must finish your breakfast!
You mustn't be late for your bus!
You must learn your vocabulary.
Ex 3 : mustn't
Must
Can
Must
Can't
Ex 4 : We must buy a new one. C
You must see the doctor. B
You must help her. D
He must not drive his car. A
Ex 5 : Must they obey the local regulations?
- Yes, they must.
Must the students switch off their mobiles?
- Yes, they must.
Can trucks overtake cars on the motorway?
- Yes, they can.
Can you smoke in the classroom?
- No, you can't.
Can she write on the walls?
- No, she can't.
Explications:
On utilise 'must' quand on est obligé de faire quelque chose. Mais 'can' s'utilise quand on a la volonté et le droit de le faire.
