1、It must be realized that.
2、All in all, we cannot live without But at the same time we must try to find out new ways to cope with the problems that would arise.总之，我们没有是无法生活的。但同时，我们必须寻求新的解决办法来对付可能出现的新问题。
3、I sincerely believe that.
4、It is natural to believe that , but we shouldn't ignore that.
5、Obviously, if we don't control the problem, the chances are that will lead us in danger.
6、Obviously, If we want to do something , it is essential that.
7、Only in this way can we.
8、Recently, the problem of has aroused people's concern.
9、The best way to solve the troubles is.
10、No doubt, unless we take effective measures, it is very likely that.
11、It is time to take the advice of and to put special emphasis on the improvement of.
12、People have figured out many ways to solve this problem.
13、Here are some suggestions for handling.
14、There are different opinions among people as to.
15、Many people insist that.
16、Nowadays, （overpopulation） has become a problem we have to face.
17、Personally, I am standing on the side of.
18、People's views on vary from person to person. Some hold that . However, others believe that.
19、From my point of view, it is more reasonable to support the first opinion rather than the second.
20、It is urgent that immediate measures should be taken to stop the situation.
21、Different people hold different attitudes toward （failure）。
22、It may be true that , but it doesn't mean that.
23、As far as something is concerned.
24、Hence/Therefore, we'd better come to the conclusion that.
25、It is commonly believed that / It is a common belief that.
26、Attitudes towards （drugs） vary from person to person.
27、Taking into account all these factors, we may reasonably come to the conclusion that.
28、There is no doubt that （job-hopping） has its drawbacks as well as merits.
29、I cannot entirely agree with the idea that.
30、It is high time that we put an end to the （trend）。
31、With the development of science and technology, more and more people believe that.
32、There is no evidence to suggest that.
33、Taking all these factors into consideration, we naturally come to the conclusion that.
34、A lot of people seem to think that.
35、People may have different opinions on.
36、There is no doubt that enough concern must be paid to the problem of.
37、In my opinion, it is more advisable to do than to do .
38、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.