Помогите пожалуйста..

The building, that was next to the school. fell down.
Jane, whos father was also a doctor, works at the hospital.
I'm going to go to the town, where i spent the best years of my life.
In the room i spotted a boy, whos father helped me last year.
There was a lot of flowers,in the tree, her father planted(?), не очень уверена.
The present ,that he bought ,was the best.
The girl, they are talking about, Mark's sister.
His brother, whom I have known for many years, phoned me yesterday.