21.My house is the oldest house in the city. ->No house 22.Nam is the tallest boy in my group. ->No one in .. 23.This is the most interesting stories of all. ->No other stories are . 24.Chinese cars are cheaper than Japanese ones. ->Japanese cars .. 25.No one in the group plays better than her. ->She can . 26.My room is larger than her room ->Her room . 27.No car in the world is older than this one ->This car 28.Quang is more handsome than Vinh ->Vinh .. 29.Hang is the shortest girl in my class -> No one 30.The Red River the longest river in the world. ->No river