"Are they also children?"
Translation:Sind sie auch Kinder?
This is answered in the Tips & Notes for this lesson: https://www.duolingo.com/skill/de/Origin/tips-and-notes
Where does auch go?
Remember that German has a peculiar, consistent sentence structure:
- The verb that changes with the person goes in position 2.
- The rest of the verb goes to the end.
- Everything else goes in between.
Auch goes between the first and the second part of the verb:
It can not go to the very end, because that would violate German sentence structure.