I crossed to the corridor door and tried the handle.

You stand at that corridor door - have it open a crack.

The car stopped halfway through the level, but the corridor door is open.

A short time later there was a pounding at the corridor door.

The girl didn't begin to guess what was going on beyond that corridor door.

Already he heard someone trying the latch of the corridor door.

"How long is the security field over the corridor doors going to hold?"

The corridor door through which Harry had just entered was one.

He pushed his way through the crowd to the corridor door.

He did not come in from the corridor door, either.