Question

句型转换，全部都是，英语好的回答一下，拜托

Answer 1

1 This isn't her book / Is this her book? / Yes, it is. / No, it isn't. / What is this?
2 That isn't my ruler. / Is that your ruler? / Yes, it is. / No, it isn't. / What is that?
3 These aren't his pencil boxes. / Are these his pencil boxes? / Yes, they are. / No, they aren't.
4. Those aren't my dictionaries. / Are those your dictionaries? / Yes, they are. / No, they aren't.