Помогите решить данную проблему, нужно перевести предложения из прямой речи в косвенную.

1) Masha said,she usually spent her holidays in the south. 2) She said,she had spent her holi­days in the Crimea previous year. 3) Boris said,he went to the south every year.4) He said,he was going to a health resort the next year. 5) Ann said to us, they hadn't come.6) She said to us, they had arrived in St Petersburg the day before. 7) I said, I had not been to Lon­don for a fortnight's holiday. 8) Nick said, he had never been to London and he added he thought he would go there the following year.9) He said, he had said not stay with his friends too long.10) He said to me they were staying at the Grant Hotel Europe. 11) He said, they were leaving the following Mon­day.12) The clerk said to them, they could leave the key with the maid upstairs.