He bought an old painting at the auction.

A penny auction is a place where you can get goods at a very low price.

He can speak English fluently.

There are many large oaks in this park.

There are many oaks living in this forest.

He plays the cor anglais very well.

He is an expert in law.

Please calculate the value of the cotangent, which is one of the trigonometric functions.

He has a deep interest in the culture of the Eastern nation.

He started his journey towards the east.