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1. What was here last century?

2. Why weren't you at the lecture yesterday?

3. How many guests were at your birthday party on Saturday?

4. She wasn't in the house yesterday.

5. I wasn't abroad last year.

6. They weren't home yesterday.

7. Where were they yesterday?

8. Why were they there?

9. How many people were in the room when you got here?

10. There were seven people there, but Mary wasn't one of them.

11. Where was Pete at 3:00 p.m.?

12. There was an old church, but there wasn't a single school.

13. What room were you in when you heard that shot?  

14. I wasn't there yesterday at all.

15. She wasn't there yesterday.

16. Who was there at 7:00 p.m.?

17. There was no one there.

18. There was nothing there.

19. Where were you when I needed your help?

20. Why weren't you with me at that difficult moment?