Ответ:

1. Jack said that he would work hard

2. Mary said that she would help her sister

3. She said that she lived in a big apartment

4. He told her that he would go to the fish market

5. Betty said that she had found her passport

6. Mr. Ford said that he didn't like pork

7. Little Tim told his mother that he was speepy

Объяснение:

Ставим все на одно время назад. Вот и всё. Вместо will ставится would, can-could, do-did и тд