The company has a monopoly on the market.

He is a dedicated communist.

His behavior puzzled me.

Enzymes are proteins that act as catalysts in biological reactions.

The company will allocate resources to the new project.

She is an undergraduate student at the university.

Tolerance is an important value in a diverse society.

The emission of greenhouse gases is a major concern for environmentalists.

She has a respiratory infection.

There is some similarity in the way they sing.