I lost my precious belongings.

I collected sand on the beach and made a sandcastle.

This box contains 100 units of sand.

This sand is very fine.

I haven't heard any news from him at all.

He tore up the letter in anger.

This book is a thousand yen.

There are a thousand meters from my house to school.

Mr./Ms. Sen is my best friend.

A journey of a thousand miles begins with a single step.