1.Lan is fatter than Mai; => Mai... 2.My house is big than your.=> Your house is not..... 3.My bag is lighter than his bag.=> His bag is..... 4.My house is not as expensive as yours .=> Your house is..... 5.Ba swims better than Nam.=> Nam... 6.Ba plays the guitar worse than Nam.=> Nam 7. My mother is the best cook in the family .=>No one 8.No one in the group is as good as Mai.=> Mai...... 9. Mai runs faster than Hoa .=> Hoa 10. Nam is the best English speaker in the group.=> No one in the group