1. Yesterday from 7 to 8 PM he conducted the operation (perfom operation). 2. When yesterday we went into the operating room, he performed the operation. 3. Yesterday from 9 to 12 we passed the exam in chemistry. 4. When I was reading a book on anatomy, a friend of mine called. 5. Yesterday from 5 to 11 we were preparing for the exam (read up for our exams). 6. Yesterday, when we were going to the Academy, we met our English teacher. 7. At the conference from 12.00 to 3.00 we discussed the problems of pet diseases. 8. When we examined the animals on the farm, we found two cows in poor condition.2) Translate from Russian to English.1. I'm taking my biology exam tomorrow from 9: 00 to 12: 00. 2. Don't Wake me when you come, I'll sleep. 3. I'm going on holiday At this time next week I will lie on the beach (lie on the beach). 4. Tomorrow from 5 to 8 I will prepare a presentation in English. 5. I'll go to the dentist tomorrow afternoon. 6. In a week from 12 to 3 we will participate (take part) in the conference.