21.  For example, reading newspaper, watching TV, taking part in the society's service, doing a part-time job and so on .

22.  We can also learn some things through service for the society.

23.  Also , we can do it through service for the society.

24.  Or, we can hold a society service, Then, by servicing people in society, we can know many problems on society.

25.  So the more we learn about the world outside, the better we will service people.

26.  There are many ways to know about society for us, such as intermediate for public, society service and so on.

27.  You can provide some service by using what you've learned in your lesson.

28.  There are many ways of knowing society, Such as books, broadcasting and service of society etc.

29.  We can perform some service plans so as to learn about our society by practising.

30.  In the modern society, the kinds of jobs are more and more developed , such as industry, service, transport.