1. He was sitting in a cafe when I saw him. Он сидел в кафе, когда я его увидел.
2. When I went out the sun was shining. Когда я вышел на улицу, солнце сияло.
3. The boy fell down while he was running. Мальчик упал, когда бежал.
4. When the war began we were living in London. Когда война началась, мы жили в Лондоне.
5. The light went out while I was having tea. Свет погас, пока я пил чай.
6. I was having tea when the light went out. Я пил чай, когда погас свет.
7. My friend was singing when I came into the room.
Мой друг пел, когда я вошел в комнату.