1. C??2. B??3. C??4. D??5. A??6. D??7. D??8. B??9. C??10. B
11. A?12. C?13. A?14. A?15. D?16. B?17. B?18. D?19. A?20. C
21. D?22. B?23. B?24. C?25. D?26. C?27. A?28. D?29. B?30. A
31. B?32. D?33. C?34. B?35. C?36. D?37. A?38. B?39. A?40. C
41. A?42. D?43. C?44. A?45. C?46. B?47. C?48. B?49. D?50. B
51. A?52. D?53. B?54. B?55. C?56. C?57. B?58. D?59. A?60. C
61. B?62. A?63. C?64. D?65. D?66. D?67. A?68. A?69. C?70. B
71. as ? to?72. about ? /
73. these ? those?74. admired ? admiring
75. employer ? employee?76. consciously ? unconsciously
77. comfortably ? comfortable?78. them ? him
79. friend ? friends?80. (without) ? (without) being