proszę o pomoc w mowie zależnej

Wyjaśnienie:
6. My Brother said that he had heard them talking about me yesterday.
7. The children said that they had enjoyed the play very much.
8. The man said that the train usually arrives at platform six, but the day before it had arrived at platform two.
9. Peter said that he hadn't left the message.
10. Joseph said that they would have to think about it.
11. Julia and Tom said that they had known each other for a year and a half before they got married.
12. Fiona complained that she could type but she doesn't speak Spanish, so she was not likely to get a job.
13. Sharon whispered that she had always wanted to hear that from me.
14. The plumber said that he will have done it by the following day. (co do tego zdania nie mam pewności)
15. Brian said that he had no idea where to look for it.