Выберите нужную форму глагола.
1. I studied / was studying politics at university.
2. I asked him what he thought / was thinking about.
3. What did you do / were you doing before you took this job?
4. Everybody knew he had stolen / had been stealing from his employer for years.
5. I was very nervous at the beginning of the match. I had never played/ had never been
playing her before, and I didn't know how good she was.