"The cat drinks milk."
Translation:De kat drinkt melk.
Because that is the word for the female cat. Kat can be used for the species so regardless of gender. Some say poes to call a cat in an affectionate way. But adults tend to stear clear of that because it also means ❤❤❤❤❤. .. So if you don't want any awkward situations just use kat.