Ex.4
1. Before I passed the exam, I had worked very hard for it.
2. After I had considered what to study, I decided to major in Maths.
3. Before she went to bed, she had written a letter.
4. After he had checked the prices, he bought a cassette.
5. Before he felt better, he had taken some medicine.
6. After they had argued, they fought.
7. Before she had a fatal accident, she had gone out for a walk.
8. After she faced the matter, she had decided to go away.
9. Before we wrote the assignment, we had read the books.
10. After she watched the film, she wrote a report.
Ex1.
1. went
2. was raining/ left
3. telephoned/ was reading
4. was coming/ met
5. were having/ came
6. was talking/ saw
7. were leaving/ called
8. was getting/ slipped/ broke
9. fell/ hurt/ was riding
10. was walking/ saw
11. was studying
12. were they doing
13. met
14. taught
15. didn't go
16. was working
17. gave
18. were playing
19. bought
20. was doing
