33. No houses in Hoi An are as old as the Tan Ky House.
=> The Tan Ky house is the oldest house in Hoi An
34. The blue whale is the biggest of all animals.
=> No animal is bigger than the blue whale
37. She is the most intelligent student in my class.
=> No one is more intelligent the she in my class
38. Peter studies English better than I
=> I study English worse then Peter

VI. 33. The Tan Ky House is the oldest house in Hoi An.
34. No animal is bigger than the blue whale.
35. Khanh Ha sings better than anyone in her time. 
36. Peter doésn't drive so carefully as John.
37. No one is more intelligent than her in my class.
38. I don't study English so well as Peter. 

35. I can't run so fast as Tom.
36. That photo isn't so beautiful as this one. 
37. Mary's mother cooks better than Mary. 
38. Laura last saw her brother when he left for Japan