I can't do enough to express my gratitude.

I will ask John to help me with the project.

I will do my best to achieve my goals.

I need to do something about this problem.

I have much to do with the success of this project.

She did a one-eighty and decided to go out with him.

You should just relax and do your thing.

Given the circumstances, you may well do the same.

It is important for everyone to do one’s part for a better future.

To achieve success, you have only to do what you love.