Помогите сделать 6,7,8 пж

Задание 6 
3. It wasnt hot last Saturday/
4.You werent at the post office last Monday
5. We werent  at the sports centre last Wednesday 
6. They werent sick last week
7. He wasnt at the station last Tuesday
Задание 7 
2.Were Lena at the museum a month ago
3. Were children at the circus lasr week
4. Were girls in the country yesterday
5. Were your big brother at the zoo two weeks ago
6. Were your parents at the theatre last Sunday
7. Were you at the animal hospital two days ago
Задание 8
3. Yes, they were.
4. No, they werent.
5. No, he wasnt.
6. No, you werent.
7. Yes, it was.
8. Yes, it was.
Если не трудно отметь, как лучшее.