помогите, пожалуйста!!!(во вложениях)

1. They don't live on a cottage. 2. He isn't good at his job. 3. We aren't students of the Biology department. 4. She doesn't often prepare meals. 5. He hasn't a car. 6. His flat doesn't face the street. 7. My flat isn't on the 10th floor. 8. They don't like travelling by train. 9. She doesn't work at school as a teacher. 10. He doesn't live in the centre of Chicago. 11. Tom doesn't play football on the Saturdays. 12. She doesn't go to her work by bus. 13. Susan isn't often late for her lessons. 14. Classes at the University don't always start at nine. 15. My brother doesn't drive a car very well. 16. She doesn't help her mother every day.