1.  We can do some change to adapt to the new problem.

2.  Even if the countries do work together, there is still not enough participation among other countries to do any drastic change.

3.  I claim that you should think it over and take measures to do some changes to improve these problems.

4.  It can adapt to the wilderness as a wolf, so it does changes.

5.  As I have been aware of the necessity of getting to know the world outside the campus, I decided to do some change.

6.  In that case, do a change!