Holi，also called the Festival of Colors，is a popular Hindu spring festival observed in India，Nepal，Bangladesh．It is celebrated at the end of the winter season on the last full moon day of the lunar month．
Holi originally was a festival to celebrate good harvests．It developed to honor a legend from the Hindu Mythology（神话）．The story focuses on a cruel king，who hated his son，Prahlada．He attempted to kill his son but failed each time．Finally，the king asked his sister Holika，who was said to be safe in fire，to get rid of his son．However，when the aunt tried to burn Prahlada，it was the prince who ended up being safe in fire while the aunt herself was burnt to death．Holi honors this event every year and huge bonfires（篝火）are burnt on the eve of Holi．The festival spreads over 16days．During these days people often have fun and play with colored powder and water．Holi is also celebrated with exciting parades which are companied by folk songs and dances．
The festival begins on the night of the full moon．Bonfires are lit on street corners to drive away the air of evil spirits and bad feelings，and to symbolize the destruction of bad Holika，after whom the festival was named．In the morning，the streets are filled with people running，shouting and laughing．
At noon，the craziness comes to an end and everyone heads to either the river or the bathroom，then relaxes and enjoys candies．A tired and contented silence falls over India．
66．We can know from the passage that___．
A．Holi lasts less than two weeks
B．the Indians celebrate Holi in honor of Holika
C．everyone needs to have a swim in the river in Holi
D．bonfires are burnt to drive away the air of evil spirits
67．What do you know about Holi？___
A．It's celebrated only in India．
B．It's named after the prince．
C．It's celebrated in different ways．
D．It's celebrated at the beginning of the winter season．
68．Which of t