Задайте 5 типов вопросов : He has been teaching children all his life.

Общий вопрос: Has he been teaching children all his life? Альтернативный вопрос: Has he been teaching children or adults all his life? Вопрос к подлежащему: Who has been teaching children all his life? Специальный вопрос: What has he been doing all his life? Разделительный вопрос: He has been teaching children all his life, hasn't he?