Just in case he fails the exam, what should we do?

He is knowledgeable in all fields of learning.

Jus gentium is a universal law that applies to all people.

He saved a hundred thousand yen.

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

I find my new fountain pen easy to write with, and I really like it.

My younger brother is diligently practicing Taekwondo every day.

He obtained the legendary Ten-hands Longsword.

He is a master of Wing Chun.

I started practicing Jeet Kune Do.