Past Simple или Past Perfect? Преобразуете.16. she(not go) to the library 3 days ago 17.How long you (know) Bill? 18. Olga always(want ) to visit Great Britan 19. You (hear) from Jack resently ? 20. Mark Twain (live) in the state of Missoun?
16. didn't go 17. have you known 18. wanted 19. have you heard 20. did mark twain live