The birds were flying high in the sky.

The birds are flying high in the sky, enjoying their freedom.

His room was empty of air, making it hard to breathe.

The altitude of this airplane is 10,000 meters.

I saw a bird in the park.

Sho loves to soar in the sky.

Sho is my best friend.

The sky is very beautiful, isn't it?

Seeing the empty cup, he poured another cup of tea.

He can recite the poem by heart.