Underline the most appropriate verb structure. a) i'm remembering / remember where i was when i was hearing / heard about princess diana's death. b) over the years, i've seen / saw the footage of jf kennedy's assassination loads of times. c) i've watched / watched the news about 9/11 live on tv. d) i 'm thinking / think that bill clinton was / has been a good president. e) i used to / would love flying, but airport security checks have changed / had changed how i feel about it now. f) the recent global rec ssion was affecting / affected me personally. g) i never enjoyed / 'd never enjoyed the olympic games until i've seen / saw the last one.