ответить . 1: are we student? 2: what are we? 3: are we reading? 4: what are we doing? 5: am i opening the book or am i closing it? 6: what am i doing? 7: is comrade petrov putting his exercise-book on yhe table? 8: who's your friend? 9: who's this man? 20: are these men factory work ers or engineer?

1. yes, we are students.
2. we are students.
3.yes, we are reading.
4.we are reading.
5. I am opening the book.
6. I am writing.
7. yes, he does.
8. my friend is Ann.
9. This man is teacher.
10.These man is engineer.