1. She was busy
2. I was not busy
3. You were busy?
4. They were home?
5. He was not home
6. I did not know
7. They knew?
8. She did not know
9. Who knew?
10. No one know
11. He read English books?
12. They never read
13. She had an apartment?
14. He did not have anything
15. Who was that?