1)
1. was
2. wasn't
3. was
4. were
5. was
6. was
7. was
8. were
9. were
10. was
2)
1. I didn't know the answer.
2. He didn't leave his passport at home.
3. They weren't at home.
4. It didn't rain all weekend.
5. I didn't get up at eight.
6. My girlfriend didn't give me a wonderful present.
7. He wasn't in Rome last week.
8. We didn't have a lot of time.
9. I didn't go to a disco last night.
3)
1. How much sugar did you buy?
2. Steve didn't like the film.
3. Did they go to Greece?
4. She didn't live in Canada.
5. Did you find your money?
6. I didn't have breakfast this morning.
7. Did you sleep well?