Direction: Select the most appropriate homonym in the context of the following sentence to fill in the blank.
The key was hanging on a ______ by the door.
1
nail: to catch someone, especially when they are doing something wrong, or guilty
2
nail: a small metal spike, driven into wood to join things together or to serve as a hook
3
nail: a thin, hard area that covers the upper side of the end of each finger and each toe
4
nail: to do something successfully