Unless they are just passing by and stepping in temporarily to get out of the rain. In that scenario, "stepping in" sounds better than "entering".
Doest it need dublicate be- in the verbs and -be/-ba in the nouns? It's like in Slavic languages.
I used "medic" instead of "doctors", now, what is the big difference that it says it's incorrect? :D
Depending on where you live, "medic" is a more generic term or different than "doctor." In US, most (not all) doctors would not want to be called medics! Some useful references are: https://en.oxforddictionaries.com/definition/medic and https://en.wikipedia.org/wiki/Medic
Thank you for clarifying! :) I am Hungarian, and I don't know of such a difference in our country, that is why it seems strange to me, especially in this lesson, as it is a Hungarian lesson.