ПОЖАЛУЙСТА ПОМОГИТЕ.Заранее спасибо.Дам 5 баллов .Номер 4.

1.My best friend isn’t in the club. He is in the pool
2. The students in my class aren’t old. They are only 10 years old.
My school isn’t easy. I think it is hard.
3. Tests aren’t new for me. These tests are from 2009.
4. Football isn’t interesting. For my mind it is boring.