1.the me kong riviver is longer than the red rive
->the red river isn"t ............................................
->the red river is..............................................
2.my house is small than your house
->your house is..................................................
->your house isn"t............................................
3.no one in my class is father than ba
->ba is..............................................
4.da nangis the most beatiful city in viet na
->no city..................................................