1.I will conclude by saying... 最后我要说…

　　2.Therefore, we have the reason to believe that...因此，我们有理由相信…

　　3.All things considered,总而言之 = In a word=In conclusion

　　It may be safely said that...它可以有把握地说......

　　4.Therefore, in my opinion,因此，在我看来，

　　5.From what has been discussed above, we may safely draw the conclusion that….通过以上讨论，我们可以得出结论…

　　6.The data/statistics/figures lead us to the conclusion that….通过数据我们得到的结论是，....

　　7.It can be concluded from the discussion that...从中我们可以得出这样的结论

　　8.From my point of view, it would be better if...在我看来，如果……也许更好