Mr. Gokawa is my best friend.

Then, he went on to university.

He left the station, departing from behind me.

He always acts as if it's someone else's concern.

We have a reserve fund for emergencies.

That shop is still in preparation.

You need to be mentally prepared before the exam.

I work in the HR department.

He fell into a state of lethargy after the exam.

Understanding the transition state of a chemical reaction is important for predicting the progress of the reaction.