1. 1) mustn’t
2) mustn’t
3) must’t
4) must
5) must
6) must
2. 1) must
2) don’t have
3) could
4) mustn’t
3. 1) had to
2) must
3) had to
4) must
4. 1) have to
2) must
3) had to
4) has to поскольку нет правильного варианта в задании
5. 1) should watch
2) should go
3) should clean
4) should visit
5) should wear
6) should read
6. 1) I think everybody should wash their hands
2) I think you should wake up earlier
3) I don’t think you should buy this expensive dress
7. 1) They don’t have to write a composition
2) I don’t have to work anymore. I won the lottery
3) We mustn’t talk loudly. This is a hospital
4) I have an exam tomorrow. I must study
5) Sara can sing very well
8. 1) You have to go straight 100 m and then turn left.
2) You should take a bus 5
3) You should turn left, then go straight and cross the road.
Объяснение:
Лелаосоаткиаикикикиикике