1. Is this your uncle?
2. Those are Emma's aunts.
3. Whose pen is this?
4. No, he isn't
5. This is my sister.
that复数形式those
this 复数形式these
1. Is this your uncle?
2. Those are Emma's aunts.
3. Whose pen is this?
4. No, he isn't
5. This is my sister.
that复数形式those
this 复数形式these