1.From what has been discussed above, we can draw the conclusion that ...

　　2.In conclusion, it is imperative that ...

　　3.In summary, if we continue to ignore the above-mentioned issue, more problems will crop up.

　　4.With the efforts of all parts concerned, the problem will be solved thoroughly.

　　5.Taking all these into account, we ...

　　6. Whether it is good or not /positive or negative, one thing is certain/clear...

　　7.All things considered, ...

　　8.It may be safely said that...

　　9.Therefore, in my opinion, it’s more advisable...

　　10. It can be concluded from the discussion that...

　　11. From my point of view, it would be better if...