Помогите перевести из прямой в косвенную речь )Пожалуйста

Пожалуйста ,мне этотна завтра надобно,а я не поняла как делать

1 Oleg said that his room was on the second floor
2 He said that he was sure she would ring him up when she was back in St. Petersburg.
3 Misha said that he had seen them at his parents' house the previous year.
4 He said that he hadn't seen his cousin that day.
5 She said that she didn't go to that shop very often.
6 Tom said that he had already had breakfast, so he was not hungry.
7 He said that he had just received a letter from his uncle.
8 He told me that he was going to the theatre that night.
9 Mike said that he had spoken to Mr. Brown that morning.
10 He told her that he should do it that day if he had time.
11 I told them that I could give them my uncle's address.
12 He said that he wanted to see me that day.
13 She said that she was free that night.
14 Mother told me that she felt bad that day.
15 The pupil told the teacher that he could do his homework after dinner.