1. It is a fact that….

　　2. It is well-known that….

　　3. There is no doubt that….

　　4. I think that….

　　5. Contrary to the popular thought, I prefer….

　　6. Some people say/believe/claim that….

　　7. It is generally believed that….

　　8. It is widely accepted that….

　　9. It is argued/held that….

　　10. While it is commonly believed that…, I believe….

　　11. It can be concluded that….

　　12. People’s views vary from person to person.

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