Or did we leave the back door open last night?

The door at the far end had been left open.

The door was left open for a possible future return.

But she wouldn't have left the front door standing open.

Even up here, would people just walk away from a store and leave the door open?

That left only the door as a means of getting in.

Why couldn't her secretary have just left the door open?

So the front door was left open for him, and in he walked.

Tom was outside now and the door had been left open.

But all too often, they don't have to use force to get into a house because a door or window has been left open.