1) eat pizza 2) go to the cinema 3) do homework

1. He said that he had already eaten the pizza by 6 oclock.
2. She said that she had not eaten the pizza last week.
3. Had your friend eaten the pizza by the time you came to his place?
4. I had already gone to the cinema when my parents came back home.
5. She said that her sister had not gone to the cinema with her last Sunday.
6. Had your brother gone to the cinema by your arrival?
7. We had done all our homework by 6 oclock yesterday.
8. I knew that my friend had not done his homework yesterday.
9. Had they already done their homework by 7 oclock?