My english very bad. Firstly sorry. Mu is a special add. When you see the "mu" over the sentence, this is a question. If we do not use "mu", the sentence is mean change. Kediler süt içiyor=the cats are drink milk.
so how should the sutu (wrong keyboard) sound? should it be more like S(you)T(you)?
The second "ü" is barely audible in the audio. The accusative suffix is too faint.
It got me too. I didn't really hear -ü in normal speech, so I wrote "Kediler süt içiyor mu?" Thank god it accepted ^^