10. This issue has caused wide public concern.
11. It must be noted that learning must be done by a person himself.
12. A large number of people tend to live under the illusion that______ . Obviously,they seem to fail to take into account the basic fact that______
13. As for me, I'm in favor of the opinion that e______ , for the following reasons:
14. It is commonly accepted that______
15. As for me, the declining of is not a bad thing; it is the natural result of progress of society.
16. It is commonly thought that our society had dramatically changed by modern science and technology, and human had made extraordinary progress in knowledge and technology over the recent decades.
17. Now people in growing numbers are beginning to believe that learning new skills and knowledge contributes directly to enhancing their job opportunities or promotion opportunities.
18. An investigation shows that______
19. However, ______is now being questioned by more and more experts,who point out that it is unhealthy for__________________
20. For people who want to adopt a healthy and meaningful lifestyle, it is important to find time to______. Just as an old saying goes, it is never too late to learn.