Ответы
1. He worked at school for several years before he began teaching
2. When I went to the library, my brother was still working.
in the University.
3. When it started to rain, we wandered through the forest (to roam the wood).
4. We wandered through the forest for a long time before we saw the lake.
5. They lived in Oxford for three years before moving to London.
6. What magazines were you looking through when I came to the reading room?
7. I looked through magazines for about two hours before I found the article I needed. (the article I needed) 8. The children had long been asleep when we returned
9. The children were asleep when we returned home.
home.
10. We were discussing a new collection of poems when he came to a meeting of our literary circle.
11. We had been discussing the new collection of poems for more than an hour when it arrived.
12. My sister was talking on the phone when I went to bed.
13. She had been talking on the phone for about half an hour when I went to bed.