1. Общий вопрос
Was I watching TV at 7 o'clock yesterday?
2. Разделительный вопрос
I was watching TV at 7 o'clock yesterday, wasn’t I?
3. Специальный вопрос
What was I doing at 7 o'clock yesterday?
4. Вопрос к подлежащему
Who was watching TV at 7 o'clock yesterday?
5. Альтернативный вопрос
Was I watching TV or listening to the radio at 7 o'clock yesterday?