He is acting very arrogantly.

My boyfriend gave me a gift.

Everyone was surprised by the news.

Ryuichi is my best friend.

She practices on the upright piano every day.

He likes to take a walk in the park at dusk.

There is a state-of-the-art incubator in my laboratory.

This old battery is no longer usable.

I mixed the pancake batter with my new whisk.

He is well-versed in the use of hidden weapons.