Помогите решить
1.I met Andrew (on/at/in/ -)________last Wednesday. He was walking to school.
2.I haven’t seen you(for/during/on) _________ages.
3.The meeting will be held (at/in/on) __________the end of the week.
4.I’m rather hungry, I’d like to go to the school canteen (for/during/on) __________the interval.
5.The ambulance arrived (on/at/in) ______time and the injured driver was immediately rushed to the hospital.
6.The main characters lost sight of each other for a long time but (on/in/at)________the end they met and never parted again.
7.My sister was born (at/in/on)_________2000 (on/in/at)_______a sunny summer day.