1、it is commonly believed that ...人们一般认为......

2、it is a common belief that if ...人们一般认为如果....

3、it is universally acknowledged that ...人们普遍认为.......

4、when it comes to .., most people believe that ...当论及......，大多数人认为.....

5、it is held by some people that ...一些人认为.......

6、there is often an assumption that ...经常有一个假设，认为.......

7、it is increasingly recognized by the general public that ...公众日益认识到......

8、it has been accepted without question for a long time that ... 很长时间以来，人们毫不怀疑地接受这样一个观点，即......

9、it has been taken for granted that ...人们想当然地认为......

10、many people insist that ...(should) do ...很多人坚持认为.......