2. Is Kate reading a book? Yes, she is. No, she is not.
3. Are Sam and Bob playing football? Yes, they are. No, they are not.
4. Is your sister making dinner? Yes, she is. No, she is not.
5. Is your mother wearing a hat? Yes, she is. No, she is not.
6. Is Ann's brother taking a photo? Yes, he is. No, he is not.