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.

The long-awaited summer vacation has finally arrived.

The case has been closed.

The case has come to a closure.

The case has been closed.

He likes to take a walk in the park at dusk.

He urged us to hurry, saying 'time and tide wait for no man.'