"This cat is yours."
Translation:Kucing ini milikmu.
Why does the tip show "Ini runahmu" for your house but here "Ini kucingmu" is wrong?
Duolingo is trying to teach you proper sentence structure. true, ini kucingmu should work for colloqual speech. But if you're learning the proper sentence structure, notice that in this case, the subject matter is CAT, so it has to be Kucing ini (This cat) not ini kucingmu (this is your cat). Hence, kucing ini (this cat) milikmu (belongs you).
The app is quite inconsistent in places I have noticed. If you know the language a bit you can allow for this. Not good for total beginners though as it confuses.