She keeps it locked, but there may be means of finding the key.
It is up to you to keep them locked.
It's really quite a lot easier to keep it locked.
I don't want to sign up for a tool that is going to keep me artificially locked in.
"Better keep it locked," he told Betty on his way out.
Many books had been stolen from the library, prompting him to keep it locked.
She did not want that door opened, and was concentrating a great deal of her efforts on keeping it locked.
"Are you going to keep me locked in here?"
When you're not home with the gun, keep it locked.
They either opened their doors to the homeless or kept them locked.