Заполните пропуски в разговоре.That039;s my sister and that039;s my mum om

Заполните пропуски в разговоре.
That's my sister and that's my mum om my ____.
Is that your dad next ____ your mum?
He's ____ the back.
So these children sitting at the ____ - are they your cousins?
Three of them are mu cousins but the ___ on the right is my little brother, Stuart