Las muchachas altas is the answer. I learned this in Spanish 1 last year.
Answer:
Where they put the tooth.
Explanation:
It seems like the most logical answer. We don't really need to know when it happens, or who takes the tooth. The tradition to recieve something doesn't go with the fact that he lost a tooth. So, the answer would be where they put the tooth. Hope this helps! If it's wrong, I'm sorry.
You should show the problem I can help you.