The word choices in the app for constructing the translations need to vary a little more. I don't know how many just have the correct words along with the two words "come" and "comes"
They also use maembe for eeeeverything.
The audio says: Maembe hayaiva. Reported (Dec. '18)
The mangoes haven't ripened should be right
I agree with the three comments. We need to learn a wider vocabulary
So I wrote "The Mangoes are not ripe" somehow its been given wrong despite showing its the correct answer...