Translation:Strange! Why is nobody home?
There are several correct translations. Please accept Why is nobody home? Why is there nobody at home?
You must accept Duo's expectation of colloquial American English. That's characteristically full of filler words and empty subjects.
Another annoying question that does not accept the correct answer. There are so many lately. What's going on?
Have you noticed the number of followers of the tree? Over 2 million! The moderators may simply be overwhelmed.
As a native Chinese speaker, Chinese grammar is really all over the place so any variation of why is no one home, why is nobody home, why is there no one home, should all be accepted
Does anyone else think the audio for 奇 sounds like "ji" instead of "qi"?
It took me a dozen attempts to "pass" (read guess) this translation. Terrible.
Is there anybody in there?
Just nod if you can hear me
Is there anyone at home?
Come on, now.
I here you're feeling down.
... learning with Dou Lingo has become...
comfortably numb. ;)