Rewrite the sentences without changing their meaning

*Drills: Rewrite the sentences without changing their meaning.
8. It's a long time since last our conversation.
- We.................................................................
9. Thanks, but i had something to eat earlier.
- Thanks, but i've.............................................
10. This is my first game of water-polo.
- I...........................................................
11. He hasn't enjoyed himshelf so much for ages.
- It's ages...............................................................
12. It hasn't rained for six months.
- It's...............................................
- It last...........................................
- The last time...............................
13. This is the first time he has flown a helicopter.
- He has..................................................................
14. I have never seen a thiller film before.
- This is......................................................
15. We haven't come here since 2014.
- It's.......................................................
- We last................................................
- The last time........................................