Надо вставить глаголы из скобок в нужной форме Past Indefinite,Past Continuous,Past Perfect,Past Perfect Continuous.

1. We had been talking for some time when the bell rang. 2. That day the sun had been shining since morning and the sky was blue. 3. I told him what I had done and he told me what he had been doing in the last three months. 4. They had been walking along the street for half an hour before they saw a cafe. 5. I was having breakfast when the telephone rang. 6. How long had you known Mike before you got married? 7. She was cooking dinner when her husband returned home. 8. She thanked me for what I had done. 9. The children had been cleaning the front step for more than an hour before their mother called them to dinner. 10. The front step looked very clean after the children had scrubbed it. 11. The family was watching TV when I came home.