But he kept an eye on the doorway down the street.

The girl's body was found on the floor between the Christmas tree and the doorway in the 14th-floor apartment.

He kept one eye on the arched doorway to the street.

I stood in the darkness, my eyes on the empty doorway, thinking hard.

His main attention seemed to be on the doorway, though.

There had been no sign on the doorway, just a number.

I kept one eye on the doorway to the apartment.

His gaze stayed on the doorway for a short while.

Having taken turns to risk a smile, they concentrated on the doorway.

Keeping close watch on the doorway, he made his way to the bed.