Дайте краткий ответ are they at home ? is she at school ? is he at home ? have they got a toy ? has he got a sister ?

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