Краткое пояснение: Чтобы составить tag question, нужно использовать вспомогательный глагол и местоимение, а для subject question нужно определить, кто совершает действие.
- Tag question: They went to the park yesterday, didn't they?
- Subject question: Who went to the park yesterday?
Ответ: They went to the park yesterday, didn't they? Who went to the park yesterday?