Ответ:
- When did you go on a picnic? — Last Sunday.
- Why did your dad sleep all the way there? — Because he was tired.
- When did you eat your lunch? — After our swim.
- When did you leave? — At six o’clock.
Вопросы о прошлых действиях образуются с помощью did и начальной формы смыслового глагола.
