13 Our old doctor was very busy.
Our new doctor is much more busy.
14 My teacher of German is the most active person.
15 We know that your neighbour is very boring person.
16 i think that your grandfather is the most generous person I have ever seen.
17 Ronald watch is accurate but his aunt watch is more accurate.
18 She bought clock in Switzerland because she thinks that swiss watch is the most accurate in the world.
19 That telefilm is much worse than present one. 
20 What is the most funniest TV program.
21 Those were the happiest days in her life