Here are the best answers for each question based on the context provided:

28. D. Yes, I would.
29. A. may
30. B. police officer
31. A. garbage collector
32. D. going out
33. C. come back
34. B. gave out
35. A. find out
36. D. hand out
37. C. should / are
38. C. returned
39. A. discover
40. D. craftsmen
41. A. meaning
42. A. teaching
43. A. well-known
44. C. decrease
45. A. preserving
46. C. maintaining
47. D. kind

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