1. Can't
2. Mustn't
3. Must
4. Must
5. Mustn't
6. Have to
7. Don't have to или можешь поставить needn't, это не важно
8. Don't have to
9. Don't have to/needn't
1. Oldest
2. Faster
3. Fastest
4. Best
1. Can't
2. Mustn't
3. Must
4. Must
5. Mustn't
6. Have to
7. Don't have to или можешь поставить needn't, это не важно
8. Don't have to
9. Don't have to/needn't
1. Oldest
2. Faster
3. Fastest
4. Best