1. They began talking avout the meeting that took place the day before.2. By eight o`clock John had locked the rooms. 3.They seemed not to understand what Nelly had said.4. He thought that the travellers had got off at one of the stations. 5 The weather which had been good up to them changed.6. He asked her how she had spent her holidays.7. He said he had had a tiring day8. It was many years since I had last seen her. 9. When he came to see me I had looked through all the newspapers.10. By that time the train had passed the Volga river.11. I told him that I had never smoked.12. I had not yet done half the work when he came.