My working day began at 7 o’clock, didn’t it? Разделительный
Did your working day begin at 7 o’clock ? Общий
Did your working day begin at 7 or 8 o’clock? Альтернативный
When did your working day begin? Специальный
What began at 7 o’clock? Вопрос к подлежащему
My working day began at 7 o’clock, didn’t it? Разделительный
Did your working day begin at 7 o’clock ? Общий
Did your working day begin at 7 or 8 o’clock? Альтернативный
When did your working day begin? Специальный
What began at 7 o’clock? Вопрос к подлежащему