She had bolted the door leading into his room, a most unusual proceeding on her part, she had had a most violent quarrel with him that very afternoon. 
She had locked the door to his room, which was very unusual of her.
She had left the door to his room open, which was unusual.
There are no plants or seeds here.
The US says our oil prices are increasing.
Microsoft Windows has cornered 90 percent of the OS market.
A person is wearing a floatation device.
A man is wearing blue.
Our car had an air conditioner.