I see "eats" as one of the possible answers. I assume that answer would be wrong. I don't think the Hindi course should be testing the student's knowledge of English grammar. Clearly a very minor issue. Thank you for this course.
I agree 100% percent. And it also comes down to typos. I make the silliest typos, some of which are accepted, and some of which aren't. Then I will say woman instead of women or vice versa. I do this in the German course all the time. I mean I'm there to learn German not to repair my English.
No it should not because using "I am eating" will turn the sentence in to present continuous form which is not the case here. Here the sentence is in simple present tense. I think before completely relying on duoling to learn hindi you should find some reliable source and learn the basic hindi grammar atleast the 'tense' part, then it'll be easier to understand and learn hindi or any other Indian language