I only want to repeat but new words from way above my level pop up
I have only just started learning prepositions, but when I refreshed some old skills, new words from greyed-out skills kept showing up without my permission (from family, household, places, objects, to be, people...)
how do I just repeat my current level without having to memorize new words every day? I just want to refresh until I have full stars on all the lessons, but keep failing because i don't understand new things that come up that I didn't ask to learn about yet.
new example: in Family (lesson 2) the verb añade (he/she adds) shows up unexpectedly.
Edit: I posted this in troubleshooting also - https://duolingo.com/#comment/208607