Questions & Answers about W aptece proszę o maść i plaster.
Because w meaning in or inside takes the locative case when it refers to location.
- basic form: apteka = pharmacy
- after w for location: w aptece = in the pharmacy / at the pharmacy
So apteka changes to aptece because of case. The k → c change is a normal Polish spelling/sound alternation in some forms.
Grammatically, proszę is the 1st person singular form of prosić, so literally it means I ask or I am asking.
But in real-life Polish, proszę is also very common in polite situations and can feel like:
- please
- I’d like
- may I have
So in this sentence, it is not just a dry literal I ask. It has a polite request meaning.