at the back

I heard the door at the back of the room open.

He had been shot at the back of the head.

Now what did you want to say at the back?

I made my way to a long table at the back of the room.

But he had no room for anything at the back of his mind right now.

One saw something near the open door at the back.

Her room is on the second floor, at the back.

How high is the one we've got at the back?

I could feel him looking at the back of my head.

The thing at the back of his mind had come forward.