Ответ: 1. isn't;is

2. are not;are и наоборот

3. isn't;is

4. am not; am

5. isn't;is

6. isn't; is

7. isn't;is

8. isn't;is

9.isn't;is

10. isn't;is

11. aren't;are

12.isn't;is

13. am not; am

14. isn't; is

15. isn't;is

Объяснение: