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.