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

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

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.

He is always the type of person who says this when that is said.

I acted just as he said.

Needless to say, he passed the exam.

She left without saying anything. I thought silence is golden.

Needless to say he is the best, he is the greatest leader.