"У вас є серветки?"
Translation:Do you have napkins?
they are also called serviettes in Australia - I'm not sure if they are called napkins anywhere but the US. Napkins - more commonly called nappies are what we put on babies bottoms!!
There is no ukrainian keyboard for android and the russian does not have the reversed э. Not possible to pass one of the questions...
The keyboard is called Українська and can be accessed by settings -> Languages and Input -> Languages
Then add ukrainian (українська). Or if not possible copy a є symbol from a webpage and paste each time you need it
there's a good Ukrainian keyboard on a site called lexilogos - most letters can be typed on an English keyboard which is much faster to use - just click with the mouse for the few that don't - also good dictionary links there.