Перести в косвенную речи очень срочно помогите пожалуйста

1 If I liked oranges.2 If I had enjoyed the film.3 If she would stay with them.4 If they were still waiting for her at the station.5 If I had been playing the piano from 5 till 7.6 if he had spoken to the Dean.7 if he could help her.8 If she had to do it at once.