A2. Exercises
1. 1. am 2. is 3. are 4. are 5. are 6. am - isn't 7. is - is 8. is - is
2. 1. don't 2. doesn't 3. don't 4. don't 5. doesn't 6. doesn't 7. don't 8. doesn't 9. doesn't 10. don't
3. 1. catches 2. wears 3. drink 4. go 5. have 6. cut 7. watches 8. teaches
4. 1. doesn't study 2. has 3. have 4. doesn't study 5. teaches 6. likes 7. washes 8. don't have
5. 1. has 2. is 3. is 4. likes 5. never bites 6. barks 7. is 8. doesn't like 9. often plays 10. becomes 11. just slept 12. plays 13. are 14. won't