Преобразуйте предложения в косвенную речь.
1- She said:" I don't know where I have lost my hotel key."
2- The firefighter said:" The main cause of fires is carelessness".
3- We will have finished building by the end of the year",they said to me.
4- My mather said to me:" Go to bed".

1- She said she didn't know where dhe had lost her hotel key.2- The firefighter said the main cause of fires was carelessness.3- They said to me they would have finished building by the end of the year.4- My mother said to me to go to bed.