Maybe so, but "girlfriend" usually refers to a ROMANTIC partner, which is "novia." Typically, you would just say "amiga." Not sure if replacing "friend" with "girlfriend" is only an English thing, but it is not even used often anymore so I would just go with "friends."
It is true that we don't have to pay, but some people like to hear the sentences (it is much more effective than just writing them).
Spanish questions are usually recognisable when spoken. You'll usually have a rise of pitch towards the end of the sentence, like in English.
The audio on here is computer-generated, and the software either has issues recognising the sentence as a question or it has issues properly implementing that pitch change.
good explanation @RyagonIV but I have to say the audio here does all of that. if you listen closely she does have a rise of pitch towards the end of the sentence. It might not be as risen as some of the oters but if you're getting the "purple haired" avatar voice then that seems to be some fun they are having, making her sound kind of bored all the time. Still I think there is an obvious inflection in the recording and people just need to listen better. That's just my opinion though, if you disagree with that, then you should go ahead and report it as "audio does not sound correct".
I believe that "simpático" can mean "kind" in some contexts, but that the primary meaning of "sympático" is nice." Think of "nice," "kind," and "sympathetic" as English words that are related but not identical in meaning, and of "simpático" as being a false friend (not really a cognate) of "sympathetic."
Is that when the task requires you to click a button and speak the sentence? If so, it happens to me ALL the time, so there's a button in the lower left that allows you to skip the task. I click that button and it simply by-passes the task. Your action is not counted wrong. It appears to be a flaw in the program. I've reported it and nothing's been done. It also could be that it doesn't happen to everyone, but it does to me.
In Spanish questions you don't have to put the verb at the beginning, you can just make a question with a question intonation. For example, you can say "son tus amigas españolas simpáticas?" or you can say "Tus amigas españolas son simpáticas?" or you can even say "Son simpáticas tus amigas españolas?" As you can see there are many variations but each of them should have a verb.
"Girlfriends" more commonly than "friends" means "romantic partners," which translates to "novia." I would just go with "friends."
In English, there are many different words (nice, kind, sympathetic, sweet, pleasant), and they are all synonyms but they have SLIGHTLY different meanings.
It's the same way with Spanish, there are plenty of ways to say something along the lines of "nice." Pleasant means "agradable," and "dulce" means sweet, but "simpatico" means "nice."