Ответ:

1. he said that he wasn't donating any more money

2. she said that Sally had join a peace group today (точно не помню как это время ставить, но вроде как так)

3. They said that they tooked their geography exams yesterday

4. My teacher said that I could read about the war in the newspaper

5. The politician said his party helped the poorest in society

6. She said that her school didn't have many recycling bins