1. This is the best essay I have ever written. I................................................................................................................... 2. It took us 3 hours to open the door.     We ................................................................................ 3. I haven’t been to the dentist’s for two years. àIt’s …………………………............................... 4. I've never heard a more amusing story than this one. This is ......................................................................... 5. I have never seen a more beautiful house than this. -This.................................................................................. 6. I haven’t seen my old school friend for 2 years.      -  The last ............................................................... 7. We started living here fifteen years ago.      à We have ........................................................ 8. He has never played a computer game before.        à This is ................................................................. 9) The last time it rained  here was a fortnight ago. It ................................................................................ 10. I’ve been working for this company for ten years. I started .......................................................................