Помогите пожалуйста. Задание 2b и 3a
Пожалуйста!

2b.
2. are; No, there aren't
3. are; Yes, there are
4. is; No, there isn't
5. is; Yes, there is
3a.
2. aren't
3. aren't
4. isn't
5. isn't
6. aren't
7. isn't