1. As the proverb says

　　2. It goes without saying tan

　　3. Generally speaking

　　4. It is quite clear than because

　　5. It is often said that

　　6. Many people often ask such question:?

　　7. More and more people have come to realize

　　8. There is no doubt that

　　9. Some people believe that

　　10. These days we are often told that, but is this really the case?

　　11. One great man said that

　　12. Recently the issue of has been brought to public attention.

　　13. In the past several years there has been

　　14. Now it is commonly held that but I doubt whether

　　15. Currently there is a widespread concern that

　　16. Now people in growing number are coming to realize that

　　17. There is a general discussion today about the issue of

　　18. Faced with, quite a few people argue that, but other people conceive differently.