14. Выберите правильный вариант. By the time I finished the essay, he. . . . . . . . . . . . . . . . . . . . . . . . . his homework. *didwas doinghad donehad been doing15. We . . . . . . . . . . . . . . . . . . . . . . . . an hour before it started raining. *workedwas workinghad workedhad been working16. c) My sister got up at 7 am, and at 8 am she . . . . . . . . . . . . . . . . . . . . . . . . . . . at work. *waswas beinghad beenhad been being17. d) They . . . . . . . . . . . . . . . . . . . . . . . . . . . home when they saw a deer by the road. *drovewere drivinghad drivenhad been driving18. a) When he called, I . . . . . . . . . . . . . . . . for my Math test. *studiedwas studyinghad studiedhad been studying19. I (study) English at school for 5 years before I left for the USA. *srtudiedwas studyinghad studiedhad been studying20. My parents . . . . . . . . . . . . . . . . . Physics at University in 2002. *studiedwere studyinghad studiedhad been studying21. d) I . . . . . . . . . . . . . . . . . . French by the time I visited France. *studiedwere studyinghad studiedhad been studying