There are keys in my pocket.

My favorite Pokémon is Pikachu.

A pager is already an old means of communication.

My grandfather underwent cataract surgery.

What is this box used for?

Looking out the window, there was a rain shower.

He is a famous painter.

Baihe County is one of the beautiful places in China.

He takes pride in his erudition in that field.

He is known as an erudite person.