My specialty is computer troubleshooting.

He is known as a troublemaker in the class.

The process of name resolution is very important in computer networks.

That unsolved problem keeps him awake at night.

That unsolved case keeps him awake at night.

He is devoting himself to his work.

She was devastated by sadness and cried her eyes out all night.

I did my best for the exam.

He used every possible means to make the project successful.

She is planning a date with her current boyfriend.