Nowadays, everything has changed a lot. In the past, the bungalows and leaf houses were many. But now, only remains in the museum or Uncle Ho's hometown. Time has replaced it with brick houses. Especially in urban areas, brick houses are located on each other, almost everywhere. In the past, studies were very rare, only the children of rich men, mandarins or kings had the right to go to school. Yet now, most children are well educated. At least middle school. On the other hand, change has its dangers. In the past, the air was fresh, filled with trees, but now only forests remain. Fresh air is only found in the countryside. Because of that, the human heart also changed. They are for fame but do not care about everything, despite everything to get money and fame. Therefore, there is no good change, everything has its good and bad sides.