The official said the front-door lock could apparently not be opened without a key, even from inside.

He put the key in the front-door lock and the door swung open.

Besides, I can see the front-door locks from the street, and they're candy.

As I put my key into the front-door lock the phone started ringing.

Their dilemma was resolved, in part, when the front-door lock clicked and disengaged.

Padding back, he heard a key turn m the front-door lock.

Before she could move, she heard a scratching at the front-door lock.

By touch she fitted the key into the front-door lock, and bolted the door behind her once she was inside.

The winner, the one of three finalists whose key will fit the front-door lock, can always redecorate.

She seemed to wait altogether too long for the rasp of a key in the front-door lock.