I'm glad to know I am not the only student having trouble understanding the new female voice. 90% of the time I have to put her into slow mode to understand her, and even then, I don't hear all the words. I don't have any trouble understanding the male teacher. Can someone at Duolingo please check into this and have it fixed? I'm about to go find another on line learning site I'm so frustrated.
Well I just wrote out a whole paragraph expressing my frustration with the way the woman pronounces factory but it's actually work that she doesn't pronounce correctly. I had to go and listen back but they've already deleted my previous comment so maybe they don't like dissent? Flag it folks.
I'm not a native English speaker but I think it's wrong (or let's say not correct) because the question is about the subject of the sentence.
Think of a reply like 'The man works in a factory.' Here, the man is the subject of the sentence. When we ask a question about the subject of a sentence (as in 'Who works in a factory?') we don't use the (auxiliary) verb 'do'.
On the other hand, if the question is not about the subject of a sentence, we do use 'do' as usual. So, if we wanted to know where the man works, we would say 'Where does the man work?' because in the sentence 'The man works in a factory.' factory is not a subject of the sentence ('the man' is).
Basically, think of a sentence and then try to ask a question about its subject, e.g. J. K. Rowling wrote Harry Potter. - Who wrote Harry Potter? (but 'What did J. K. Rowling write?'), I reported it. - Who reported it? (but 'What did you report?')
Trabajar is the infinitive meaning "to work"; trabaja and trabajas are two conjugated forms of trabajar:
Tú trabajas (You--singular familiar, NOT formal--work)
Él/Ella trabaja (He/she works)
Usted trabaja (You--formal- -work)
Because the pronouns can usually be inferred from the verb form and the context of the sentence, often the verb is used alone.
Trabajas (You work)
Trabaja (He/She works; and depending on the formality of the conversation--You work)
Also, English has three present verb tenses where Spanish has one, so, for instance, even though I translated 'trabajas' as 'you work', it can also mean 'you are working' as well as 'you do work'.
I hope that helps!