Ответ:
1. She had already finished work before we came yesterday.
2. He had worked in the hospital before they gave him the prize.
3. I asked her what she was doing all the morning.
4. She asked me what I had read since I was in the fifth form.
5. She had been working in the zoo for ten years when she decided to look for another job.
6. I saw that the baby was crying for a long time.
Объяснение: