12. what … last saturday? a) were they buying b) they bought c) did they buy d) they were buying 13. mary … that he was not right. a) was understanding b) have understood c) understood d) has understand 14. the train … on time so we were late. a) didn’t come b) wasn’t coming c) wasn’t come d) didn’t came 15. how many chairs … to the room? a) you have brought b) have brought you c) you did bring d) did you bring 16. when i phoned she … a bath. a) had b) was having c) was have d) has 17. what … when your mother came back home? a) were you doing b) you did c) you were doing d) did you 18. what … her about the school ? a) you told b) did you told c) told you d) did you tell 19. she … because she couldn’t find her dog. a) cried b) was crying c) crying d) cry 20. my parents … in 1970 a) got married b) get married c) were getting married d) getting married