题目内容：
回答题One type of person that is common in many countries is the one who always tries to do as little as possible and to get as much （56） return as he can. His opposite, the man who has（57）for doing more that is strictly （58 ） and who is ready to accept （59） is offered in return, is （60）everywhere.
Both these types are entirely different （61） their behavior. The man who （62 ） is always talking about his " （ 63 ）"; he thinks that society should 64 him a pleasant, easy life. The man who is always doing more than （ 65）talks of "duties" ; he feels that the 66 is in debtto society.
The man who tries to do as （67） as he can is always full of （68） . For instance, if he has 69 to do something, it was because he was （ 70 ） by bad luck. His opposite is never （71） busy to take ona(an) （72） piece of work. So it is （73）that if you want something （ 74 ） in a hurry, go to the busiest man whom you have （75）in.
请回答（56）题 A．in
B．by
C．as
D．of
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答案解析：