I suppose you are quite sure that the latch-key was forgotten, that he did not take it after all?
Are you sure that the key was forgotten?
He had the key with him at all times.
There is a person at the sewing machine.
A man excitedly talks while a woman opens something.
It is a cool day today.
A Woman in a green top is reading a book indoors.
The people in the mirror are asleep.
I have been to Prague over five years ago.