Ответ:

1. he said that the christmas day was on 25 december

2. dad said that it was time to bed

3. she told me that she would see me the next week

4. *не понятно предпоследнее слово в предложении* said that he/she (зависит от того самого непонятного слова) had finished the chores I had asked him/her (всё от того де зависит) to do

5. he said that we could go out tonight

6. they said that they had never travelled by train before that time

7. he said that the earth is round

8. they said that they had gone to the circus the week before

9. he said that she had broken the vase

10. sally said that she had gone to the theatre the day before

11. Tina said that she was prepairing the dinner

12. mum said that I was going to be late for school