Помогите по английскому 7 класс

задание: Choose the correkt verb form.
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 intresting books after the concert.
e) They stayed / have stayed in Astana since Actober.
f) They know / have they each ofher for 5 years.
g) When did they go / have they gone to Astana?
h) Dmitry went / has gone to Astana 3 months ago.
i) Omar lived / has lived there for 5 months.

немогу вбить потому что не поняла как делать (((