Постановка глаголов в Present Continius:

Are they wearing and shirts?
No, they aren't
They are wearing shorts and T-shirts.

Is he wearing boots?
No, he isn't.
He is wearing boots. (Если вставить один вспомогательный глагол (is) без глагола (wearing), то получится "Он ботинки")

Is she wearing a braclet?
No, she isn't.
She is wearing earrings.

What are you wearing?
I'm wearing а dress, earrings and boots.