Вставьте в пропуски am/is/are

1 I ... a pupil.
2My father ... not a teacher, he ... a doctor.
3... you in Grade 5?
4... they at home? - - No,they ... not at home, they ... at work.
5My brother ... a worker.He ... at work.
6... you an engineer? - - Yes, I ....
7. ... she a photographer? No, she ... not a photographer, she ... a student.
8. ... your brother at school? - - Yes, he ... .
9. ... Nina at school? - No, she ... not at school.
10. My ... sister ... at home.
11. ...this your watch? Yes, it ... .
12.She ... an actress.
13.This ... my bag.
14.Helen ... a painter.
15. ... you new to the school