Решите пожалуйста даю 15 баллов 16 задание

a) They have seen the tower “Baiterek”. b) They saw the concert last week. c) I like it all my life. d) They bought a lot of interesting books after the concert. e) They have stayed in Astana since October. f) They gave known each other for 5 years. g) When did they go to Astana? h) Dmitry went to Astana 3 month ago. i) Omar has lived there for 5 months.