Ex.1
1. had
2. helped
3. saved
4. was
5. gave
6. taught
7. took
8. wrote
Ex.2
1. Did they build a small house ten years ago?
2. They didn't come to our house last Monday.
3. Did she bring you a gift for your birthday?
4. Tim didn't send me any flowers last week.
5. Peter didn't find any money in the park.
Ex.3
1. They went abroad last month.
2. She could read and write when she was three years old.
3. I didn't take your money.
4. Kelly didn't break the expensive vase.
5. Did she do her homework?
6. Susan didn't go to work last Wednesday.
7. The children sang a beautiful song a moment ago.
8. Peter slept eight hours yesterday.
9. Did Mary leave to work a moment ago?
10. I swam ten kilometres a day when I was younger.
