The problem in nom.pro part of German study (English edition)
sorry to put here. Because the discussion in that part has closed. In that part, there is a phrase 'every cat likes milk'. It has no problem in Grammar. But please be careful about that information. It is better to be cautious to feed cat milk which might makes them sick.
Hello, it's very kind of you to think about the wellbeing of cats.
The sentences on Duolingo, however, are not meant to be advice for life. There are even sentences like "My bear drinks beer". I find these sentences funny, and therefore it's easier for me to remember them.
I'm sure that people who take care of cats will get the necessary information from the right people.