1. would give up
2. would be
3. wouldn't talk
4. would meet
5. could take
6. could have
7. would pass
8. wouldn't go
9. would do
10. had arrived
11. wouldn't catch
12. knew
13. were
14. learned
15. were
II.
2. I could help you.
3. we weren't busy with doing our assignments.
4. I didn't have to go right now.
5. she had keys to unlock doors.
6. I knew her address.
7. the weather were nice for us to have a picnic.
8. I wouldn't be late anymore.
9. his father would give up playing gamble.
10. Hoa came to English club on time.
11. my younger sister brushed her teeth after meals.
12. the naughty boy didn't ride his bike fast.
13. the boys didn't make noise in class.
14. there were something in the fridge.
15. he didn't feel tired now.
16. he were fast enough to finish his cycling race.
17. he were tall enough to play basketball.
18. he did Math exercises correctly.
19. I had some money to buy a new bike.
