Odpowiedź:
Generalnie ćwiczenie opiera się na nauce używania czasów Past Simple i Past Continues. Past Simple używamy przy czynności zakończonej w przeszłości i niemającej wpływu na teraźniejszość. Używamy go też jeśli mamy podaną konkretną datę kiedy coś się działo. Past Continues używamy do czynności długich trwających w przeszłości. Mamy wtedy końcówkę -ing oraz formę was/were. Jeśli opowiadamy o czymś co się działo jedno po drugim np. zjadłem, później umyłem, później uczyłem, używamy Past Simple.
Wyjaśnienie:
1. He was sitting in a cafe when I saw him.
2. When I went out the sun was shining.
3. The boy fell down while he was running.
4. When the war began we were living in London.
5. The light went out when I was having a tea.
6. I was having a tea when the light went out.
7. My friends were singing when I came into the room.
8. While you were playing the piano I was writing a letter.
9. While I was at school I was learning Latin.
10. He was eating his dinner when I went to see him.
11. When my grandmother was going for a walk she always wore gloves.
12. When it was raining she was carrying an umbrella.
13. She died while she was running after a bus.
14. We were drinking coffee every day when we were in France.
15. You were wearing your new hat when I met you yesterday.
16. When I was having a dog I always took him out for a walk in the evening.
17. When the phone rang, I was having a bath.
18. I was laying the table for dinner while you were washing your hands.
19. When we were living in that house, we had three servants.
20. Large crowds were waiting at the station when the Prime Minister arrived.
