Bioweapons are a major threat to humanity.

The children were playing by beating the pellet drum.

He couldn't hide his jealousy towards her success.

He is suffering from a disease.

The mammoth is an extinct large mammal.

That thing is important to me.

I was beguiled by his charm.

Anger was visible on his face.

The project is making progress smoothly.

He brought his muddy shoes into the house.