Упражнение 5. Вставьте глагол 'to be' в требуемой форме Present Simple.

1) I am a student. 2) My father is not a shop-assistant, he is a scientist. 3) Is your aunt a nurse? Yes, she is. 4) Are they at home? No, they are not. They are at school. 5) Are you an engineer? Yes, I am. 6) Is your friend a photographer? No, she is not a photographer, she is a student. 7) Are your brothers at school? Yes, they are. 8) Is this her watch? Yes, it is. 9) Max is an office-worker. 10) We are late, sorry!