1. from this point of view
2. in a word
3. in conclusion
4. on account of this we can find that
5. the result is dependent on
6. therefore, these findings reveal the following information:
7. thus, this is the reason why we must
8. to sum up
9. as far asbe concerned, I believe that
10. It is obvious that
11. There is little doubt that
12. There is no immediate solution to the problem of , but might be helpful
13. None of the solutions is quite satisfactory. The problem should be examined in a new way.
14. It is high time that we put considerable emphasis on
15. Taking into account all these factors, we may safely reach the conclustion that
