"Is the jam all gone again?"
Translation:Onko hillo taas loppu?
I think what they mean is why is loppu not in the partitive? We've seen sentences like "Tämä kiisseli on sinistä," where sininen went into partitive even though kiisseli was in nominative, so why does this sentence have "loppu" and not "loppua," or whatever the partitive form would be? Is loppu an adverb, perhaps, and never takes the partitive...? Or is there another explanation?