They found two ruined buildings. Общий вопрос: Did they find two ruined buildings? Специальный вопрос: What did they find? Вопрос к подлежащему: Who found two ruined buildings? Альтернативный вопрос: Did they find two or three ruined buildings? Разделительный вопрос: They found two ruined buildings, didn't they? Типы вопросов выберите сами.
Общий вопрос:
Did they find two ruined buildings?
Специальный вопрос:
What did they find?
Вопрос к подлежащему:
Who found two ruined buildings?
Альтернативный вопрос:
Did they find two or three ruined buildings?
Разделительный вопрос:
They found two ruined buildings, didn't they?
Типы вопросов выберите сами.
How many buildings did they find?
What did they find?