Задайте к этому предложению пять вопросов (общий, альтернативный, разделительный, специальный, вопрос к подлежащему).
By 8 o'clock yesterday he had done his homework

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1) What had he done by 8 o'clock yesterday?
2) Had he finished his homework by 8 o'clock yesterday?
3) Did he finish his homework by 8 o'clock yesterday or later?
4) By what time yesterday had he completed his homework?
5) Who had done his homework by 8 o'clock yesterday?