Нужно 5 предлож. из Activ voice на passive voice помогите пожалуйста

1) I read an interesting book yesterday.
An interesting book was read by me yesterday.
2) We had done our homework by 7 o'clock.
Our homework had been done by us by 7 o'clock.
3) My mother мейд a very delicious meal.
A very delicious meal was мейд by my mother.
4) Teachers teach their students.
Students are taught by their teachers.
5) She bought some milk in the shop.
Some milk was bought by her in the shop.