The sound was so quiet that I could hardly hear it.

Yasushi is my best friend.

I heard the sound of horse hooves from afar.

I can hear his voice from afar.

The moment I opened the door, the cat jumped out of the room.

The sonority of that music is very beautiful.

The roof of this building is made of zinc.

This library is very quiet.

Shizuka is always kind and considerate.

I've been working all day and I'm already exhausted.