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31. C (One key to get along well with people is to know when and how to say you are sorry./ Apologizing doesn't mean that who "won" or who "lost". It is a good way to keep strong friendship.)
32. D the small problem
33. C ( It is not easy to apologize. Many of us are ashamed or have too much pride. Sometimes we do not know how to do it. Here are some tips that may make it easier to say you are sorry.

34. A (Explain. It is important...seriously)
35. A rõ ràng

36. My mother is always given flowers on Mother's Day.
37. If Mr.Richards hadn't been late every day, he wouldn't have lost his job.
38. Her mother isn't as responsible as her.
39. Harry said that he was going back to work the next week.
40. The dictionary was too expensive for me to buy.