Complete the sentences with the correct form of be.

Mr Davis is my teacher.
1 I __ a boy
2 We __ from Karagandy.
3 You __ a girl.
4 Aru and Alibek __ eleven years old.
5 Kazakhstan __ a big country.
6 Andrej __ from Ljubljana in Slovenia.
7 You __ my friends.

Помогите!!!