"He drinks from the bottle."
Translation:Er trinkt aus der Flasche.
Just to add to what Lenkvist said... this will help you in the future:
Because "den" is accusative masculine (or dative plural) and it is here dative feminine singular.
Lol why does the hint say the translation is vom but when I used "er trinkt vom flasche" it corrected me and said "aus der" I get why it's aus der flasche, but why don't the hints mention that as the translation?