Образуйте отрицательную и вопросительную форму предложений 1 . He is a student . 2. He was a pupil. 3.she will be a student next year . 4. They are at home now . 5 we were ill last week . 6. I shall be at work tomorrow. 7 i am a doctor. 8. My friend is an engineer. 9. There were a lot of books in his room . 10 all my family wi be at hone tomorrow