1. They said that they didn't know where the boys went. 2. The teacher asked what the boys were doing there. 3. My friend asked if I had done a lot of sightseeing. 4. My mother told me not to take that book. 5. He said that he would bring me his photos the following day. 6. Helen asked Pete where had they gone the previous holidays. 7. Kate said she had been sure that he had posted the letter. 8. The teacher said to open the books. 9. The teacher asked where Tom lived. 10. Mike said that he often went to museums.