Choose the cjrrect verb form. dmitry and omar have been to astana. a)they have seen/saw the tower "baiterek". b)they saw/ have seen the concert last week. c)they love rock and roll.i like /have liked it all my life. d)they bought / have bought a lot of interesting books after the concert. e)they stayed / have stayed in astana since october. f)they know / have known each other for 5 years. g)when did they go / have they done to astana& h)dmitry went / has done to astsns 3 months ago. i)omar lived / has lived there for 5 months. заранее