This exam is a matter of life or death for me.

He is viewing that situation as a serious problem.

He views that situation as a problem.

A new approach is needed to solve this set of problems.

The main problem with this project is the lack of communication.

This question text is too difficult, it's hard to understand.

So, that's my thought.

Yes, I will be in charge of that project.

It seems that he is tired.

The flower is blooming vibrantly.