Answer:
1. A paw is to a cat as a foot is to a human.
2. A key is to a door as a password is to a computer.
3. A girl is to a boy as a woman is to a man.
4. A goose is to a flock as a dog is to a pack.
I'm not quite sure if I did this correctly, but if I did, then I hope this was able to answer your questions. Have a nice day!! ^_^