12. For years ______________ had been viewed as ______________. But people are taking a fresh look at it now.
13. It has stipulated by the government that ______________. To this stipulation, many people respond actively because ______________.
14. ______________ is a common occurrence in our daily life. Whatever we do, ______________ cant be avoided.
15. ______________ has become a hot topic among people, especially among the young, and heated debates are right on their way.
16. Recently, ______________ has become the focus of the society, and in this way.. People swarm to ______________.
17. ______________ has been playing an increasingly important role in our day-to-day life. It has brought us a lot of benefits but created some serious problems as well.
18. Man is now facing a big problem-______________, which is becoming more and more serious. First, ______________ second, ______________.
19. Nowadays more and more people are beginning to be aware of the seriousness of ______________.
20. It is only during the last years that man has become generally aware that ______________.
21. There is an old saying, ______________. Its the experience of our forefathers, however, it is correct in many cases ever today.
22. The English proverb says, ______________. This is quite true because ______________.
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