Что нужно вставить?

... they wearing and shirts?

No, ...

They ... shorts and T-shirts.

... he wearing boots?

No, ...

He ... shoes.

... she wearing a bracelet?

No, she ...

She ... earrings.

What are you wearing?

I'm wearing ...

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.