Transform the situations and the text in Past

1. - how long have you been friends? - for six years. - when did you fall out? - last week. 2. i saw an awful auto accident the other day. - where did it happen? 3. as a journalist i have visited a lot of unusual places lately. 4. mr morgan made a speech in our principal's honour during our last meeting. 5. i have known lucy for all my life. 6. have you signed up for the language courses yet? 7. - i have spent all my allowance. - where and when did you do it? - i bought  an ipod last saturday. 8. have you signed the papers yet? - not yet. i'll do it later. 9. jane, when did you do your bedroom last? 10. i admit i have made a mistake. please forgive me. 11. the lovedays have just arrived. 12. i have spoken to the chairman just now and he said he knew nothing of the incident.