Każda pije. (woman)
Każdy pije. (person)
I wrote exactly the right answer but forgot a space between ktora and kobieta. Took my last heart away. Harsh.
Why does woda become wode after pije
Most transitive verbs (verbs that take an object) need this object to use the Accusative case. "wodę" is the Accusative form of "woda".