Письменно переведите на русский язык следующие предложения, обращая внимание на употребление глагола must и его эквивалента:
1. You must be at home at 9 o’clock.
2. You must not park your car here.
3. It’s too late. I must go.
4. I was ill and had to stay at home yesterday.
5. I don’t remember this rule. I will have to revise it.