3. прочтите следующие предложения и назовите время, в котором стоит глагол-сказуемое. 1) i am a student. 2) my grandfather was a chemist. 3) my favourite writer is jack london. 4) i have many books by jack london. 5) i shall be a doctor. 6) we had a lesson in chemistry yesterday. 4. поставьте глагол to be или глагол to have в нужную временную форму. 1) we (to be) at the university yesterday. 2) i (to be) at the library tomorrow. 3) i (to be) a medical student now. 4) he (to have) a lecture in physiology yesterday. 5) my father and my mother (to be) doctors. 6) i (to have) a seminar in histology next friday. 7) i (to be) a doctor when i grow up. 8) my sister (to be) ill last week. 9) it (to be) difficult to study at the university. 5. поставьте следующие предложения в отрицательную и вопросительную формы. 1) they were at the lecture two hours ago. 2) she will be at the university tomorrow. 3) i have much to do every day. 4) we shall have a meeting next saturday. 5) they had many friends. 6) my sister is ill now. 7) we were pupils last year. 8) yesterday we had three lectures. 9) he has enough time to come in time for his lecture. 10) they have an atlas in anatomy.