Recently, the problem of has aroused people's concern. 最近,问题已引起人们的关注.
The Internet has been playing an increasingly important role in our day-to-day life. It has brought a lot of benefits but has created some serious problems as well.
Nowadays, (overpopulation) has become a problem we have to face.
It is commonly believed that / It is a common belief that 人们一般认为
Many people insist that 很多人坚持认为
With the development of science and technology, more and more people believe that
A lot of people seem to think that 很多人似乎认为