Дайте краткий ответ are they at home? Is she at school? is he at home?

1) Are they at home? Yes ,they are.No, they aren't2) Is she at school? Yes, she is. No,she isn't3) Is he at home? Yes ,she is.No she isn't4) Have they got a toy? Yes ,they have.No , they haven't.5) Has he got a sister? Yes,he has.No, he hasn't.