He is really knowledgeable and always teaches us new information.

Sentarou fell asleep while watching TV.

He participated in the anti-war movement.

He is participating in the anti-war movement.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

My house is near the mountains.

This is my grandparents' house.

My house is near the mountains.

My house is near the mountains.

He is a computer expert.