Решение:
В разделительных вопросах (question tags) в английском языке используется вспомогательный глагол из основной части предложения. Если основная часть утвердительная, то «хвост» — отрицательный, и наоборот. Местоимение в «хвосте» соответствует подлежащему.
- These are your gloves, aren't they?
- You can come at 9 o'clock, can't you?
- Granny has a lot of things to do, doesn't she?
- The children are at home, aren't they?
- There are a lot of children at the stadium, aren't there?
- They could dance well, couldn't they?
- The boys can't go there, can they?
- We can have a party on Sunday, can't we?
- Little children couldn't write, could they?
- They aren't in the park, are they?