When you called I was taking a shower. Когда ты позвонил, я принимал душ. ...
Were you sleeping when I called? You sounded drowsy. ...
We were not playing chess when you called. Мы не играли в шахматы, когда ты позвонил. ...
I was sleeping when someone knocked at the door. Когда я спал, кто-то постучал в дверь.
