8. If you tell Jim what to do, he will do anything.

9. If they had enough time, they could do me a favor.

10. If I don't leave now, I'll miss the flight.

11. If we don't hurry up, we will be late for the exam.

12. If Peter prepared his lessons well, he wouldn't get bad marks.

13. If he had enough qualifications, he would apply for the job.

14. We could buy this car if it weren't expensive.

15. If he doesn't phone her immediately, he won't get any information.

16. If they found out the remedy, the patient wouldn't die.

17. If Susan wouldn't have felt sick if she hadn't eaten 4 cream cakes.

18. Unless he had wasted too much time, he wouldn't have failed in his examination.

19. Rita wouldn't be exhausted today if she had got any sleep last night.

20. If the flats were clearly numbered, it wouldn't be difficult to find anyone.