13. A were our father 14. b Had Peter driven 15. d rains 16. d would have had/had passed 17. c Should MrJones call 18. a Unless = If...not 19. b or 20. d If only 21. c Without good preparations 22. c were/would you do 23. a or you will make 24. d but for your warning but for + N/Ving 25. b otherwise 26. d had not been 27. c finds 28. d but for 29. c would die 30. a will bite
