Ответ:
My dad wasn`t a PE teacher.
We aren`t students.
We haven`t got 5 lessons today.
My favourite subject isn`t Maths.
Mahas hasn`t got a brother.
Я так понимаю possessive case это притяжательный падеж. в таком случае-
where is Ben's copybook?
I repair my sister's toy yesterday
Micheal's telephone is on the table
My cousin's friends are three years older than me
I forget Billy's book at home
1.leave
2.manners
3.take
4.eat
5.finished
1. I'll think I go to see my granny.
2. What are you going to do tonight?
3. Did you go on a trip yesterday?
4. I don't play chess with my father every day.
5. My mum is going to walk with our dog.