1. The sun had rose before he woke up
2. Before he died, he had been very ill
3. I understood the problem as soon as he had explained it.
4. After she had written the letter, she went to the post office
5. When I drove to the airport, the plane had taken off
6. She had read the message carefully before she wrote a reply
7. As soon as he had left the room, I turned on the radio
8. After he had had dinner, he went to the cinema
9. The man hadn't left till he recieved a definite answer
10. We didn't say a word until he had finished his story
11. When we reached the football ground, the game had started
12. Before John began to study architecture, he worked as a skilled builder
13. Harold couldn't leave for home till he had completed everything
14. After it had snowed heavily, the snow was very deep
Объяснение:
