1.Tom had returned from the cinema by five o\'clock.2. I had finished my homework by seven o\'clock.3.She had written report by eight o\'clock yesterday4.Who had finished his wort by Monday? 5. I had finished my work by Monday6. He told me that he had seen Nick week before7.I had written8. By 1999, he had become a famous artist.9. They had gone. 10. We hadn’t worked11.Had you written a letter?12. I didn’t want to go to the cinema yesterday, because I had already seen the film.13. I did not have any money because I had lost my wallet.14.He said that he had bought a car two week before.15.I had read the book by five pm yesterday.16.My friend had rung me up before he went home.17.They went for a walk after they had finished the work.18.Had you washed your hands before you took the food?19.Marina had left by the 15th of June20.They had discussed the contract when I come