28. b
29. b
30. a
31. a
32. c
33. b
34. с
35. a
36. a
37. a
38. b
39. b
40. a
41. c
42. c
43. a
44. a
45. a
46. a
47. b
48. c
49. c
50. laugh
51. time
52. a
53. b
54. always
55. b
56. c
57. e
58. d
59. What kind of English books does he read?
60. the doctor comes to work in time