Ответ:
1. Is Moscow bigger than London?
2. I think that having picnics in the forest is as enjoyablest as going for a walk.
3. This is a prettier beach than the one on the other side of the island.
4. The weather today is a lot worse than it was a month ago.
5. The Dnieper isn't as widest as the Volga, is it?
6. Life in small towns isn't as busiest as in big cities.
7. Their country house is further away than ours.
8. George doesn't like living here as much as his oldest brother, Ken, does.