Помогите пожалуйста. Даю 20 баллов

1.
1. Pete is 12 years old
2. My friends are at school
3. The dog is clever
4. His sister is student(без s)
5. Nora and Steve are english
2.
1. Natasha is Russian
2. Ben is from Canada
3. The Greens are english
4. They are from the USA
5. She is an Australian girl.
3.
1.Have they got a ball? Yes, they have.
2.Has she got a brother? No, she hasn't
3.Has Helen got a ruler on her desk? Yes, she has.
4.Have you got a computer? No, I haven't.
5.Have we got apples? Yes, we have.
4.
1.These pencils are Ann's
2.This is my bike
3.That girl over there is Jane
4.Those trainers are good
5. This bird is in the tree
5.
1.is
2.are
3.is
4.are
5.is