Ответ:
1. Oleg said that his room was on the second floor.
2. Misha said that he had seen them at his parents’ house the previous year.
3. Mike said that they had bought those books that day.
4. He said that he would not stay with his friends too long.
5. She said that she didn’t speak Italian.
6. He said that he liked that song.
7. The teacher said to me that I had not done my work well.
8. She says that she doesn’t want to take the medicine.