1. John said that he was very busy then.
2. He said that the horse had been fed.
3. John said that he knew/knows her name and address. (Note that the tenses may not change if the statement is still relevant or if it is a universal truth.)
4. She said that German is/was easy to learn.
5. He said that he was writing letters.
6. Alice said that it was too late to go out.
7. He told me that he didn’t believe me. OR He said he didn’t believe me.
8. He says that he is glad to be here this evening. (When the reporting verb is in the present tense, adverbs of time and place do not normally change in indirect speech.)
9. He asked me what I was doing.
10. The stranger asked where the post office is/was.
11. He asked me if I would listen to him.
12. John ordered Peter to go away.
13. She asked me to wait there till she returned.
14. The judge commanded them to call the first witness.
15. He urged them to be quiet and listen to them.