1) Alla's flat is (more comfortable) than Peter's flat.
2) My parents are (the best) in the world
3) High Street is (the most interesting) street in the city.
4) Lizzy's plan for holidays is (more pleasant) than your plan.
5) Helen's story was ( the most wonderful) .
6) Ken's answer was (the worst).
7) Andrew says his holidays were (the best)