Since English is also not my first language and i'm trying to learn spanish here, it would be nice if duolingo stopped testing on english language skills... The alternatives "a egg" and "an egg" are not quite helpful in that aspect
no :) sometimes you have to remember which nouns are masculine & feminine but this one is easy. "un/una" modifies the egg (huevO). masculine either refers to all male or gender neutral nouns (mixed male & female) so, we can't tell the gender of an egg therefore it is masculine. an egg = "un (gender neutral) huevo"
Why in the hell would you turn off the microphone with a 60 minutes default. My cab ride is 10 minutes? Please find the holes, the one who suggested it and the one who approved it, and fire them both. Then change the app so it request from each individual user what duration they would like for the mic to be inactive or offer five (5,15,30,45 or 60 min.) or more more options. There, that one is free to Duolingo to use as they desire. You're welcome.