Поставьте вопросы к выделенным словам, обращая внимание на видовременные формы глагола. 1. We attended this sales conference yesterday. 2. I was operating the computer during two hours yesterday. 3. He has collected all the data already. 4. We always take the metro to the office.
When did we attend this sales conference? How long was I operating the computer yesterday? Has he already collected all the data? How do we always get to the office?