He is really knowledgeable and always teaches us new information.

He found out the truth and was surprised.

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.

She is planning a date with her current boyfriend.

He lost everything.

My boyfriend gave me a gift.

Everyone was surprised by the news.

He is suspected of being involved in the sabotage of the company.