My computer is currently under examination.

I go jogging every morning before noon.

He is in the middle of studying for the exam.

Cultural exchange between China and Korea is very important.

Mr. Nakai is my best friend.

The shipworm is known for eating wood.

We crossed the sea by catamaran.

He engaged in an extravehicular activity from the spaceship.

He is undergoing training for extravehicular activity.

He started exercises to strengthen his gluteus medius muscle.