6. A. unless
7. D. is
8. B would have never taken
9. B. didn't
10. B. hadn't stopped
11. I'll not get lost
12. had listened
13. D. eats
14. D. I were you
15. A. unless
16. B. were
17. A. hadn't been
18. B. try
19. D. If he had arrived only
20. B. might have
21. B. would be
22. D. I had known it would rain
III. Rewrite the following sentences
1. If they behaved themselves, their parents would be happy about that.
2. If I were a rich businessman, I could afford to buy an expensive car.
3. If my parents allowed me to go, I would not have to stay at home