... 18. a 19. c 20. c 21. c 22. c 23. b 24. a 25. d 26. c 27. c 28. b 29. d 30. a 31. c 32. d 33. c 34. b 35. d 36. a 37. d 38. a 39. d 40. b 41. c 42. a 43. b 44. c 45. d 46. b 47. d 48. c 49. a ... may ( 49) _______ that they should be free to do as they like. They say that we already have no-smoking areas in public places, and that this should be enough. To my mind, however, non-smokers ... Smokers may ( 49) _______ that they should be free to do as they like. They say that we already have no-smoking areas in public places, and that this should be enough. To my mind, however, non-smokers...