All at once we heard a shot.

All at once we heard a shot outside.

Suddenly there was a rifle shot.

A shot rang out.

Shots were heard in the distance.

We heard shots in the distance.

Even as he was speaking, a shot rang out.

I heard a shot just now.

We are astonished at the shot.

I'm surprised no one else heard the gunshots.

I heard a shot just now.

Tom heard some shots.

My eardrums burst because of the gunshot.

The police came as soon as they heard the gunfire.

I'm not sure what it was, but it sounded like a gunshot.

I'm not sure what it was, but it sounded like a gunshot.