There were two sisters. The older sister is verty kind. She likes to help neighbors and bring happiness to them. The younger sister's name is Carol. She doesn’t like to help others. Their neighborhood is quite poor. So on Xmas Eve, the older sister decided to sing Xmas songs to her neighbors to cheer them up. This custom has carried on many years. One year on Xmas Eve, the older sister is too sick to sing. Her younger sister Carol decided that she would help. So Carol went to sing to the neighbors. And neighbors were surprised to see Carol and they all said” Look, it is Carol. Look, it is Carol.” This is how Xmas Carol began.