We didn't say a word to each other until the door had slammed firmly shut.
"Every weekend, too many questions," said one as she got into her car and firmly shut the door.
He kept his doors and windows firmly shut on these days.
With the door firmly shut he turned on her again.
With the door firmly shut, she looked down at him.
She moved back, waiting for the door to open, but it remained firmly shut.
Several seconds later, the two men could hear the apartment door open and shut firmly.
There were no low windows, and the door was firmly shut.
He got out of the car and firmly shut the door.
Then they were in the corridor once more with the door shut firmly behind them.