My two daughters were watching TV.
The elder girl suddenly said,
" It's stink! Who farted?".
She looked around. Then she looked at her little baby sister.
I laughed and told her that she should've said "Did you?" Instead.
I wonder if I was right. I meant "Did you fart?", but it could be " Are you (the one)/hiding/pooping ?".
I want my kids to speak proper English, but English is my second language.