阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
Festivals and celebrations have been held everywhere since 1 ________ times. Todayˈs festivals have many 2 ________(originally)，some religious, some seasonal and some for special people or events.
The festivals for the dead are held to honour the dead or to3 ________(satisfactory) the ancestors, who might return either to help or to 4 ___________，such as Obon in Japan, the Day of the Dead in Mexico, and the Western holiday Halloween, which is now a childrenˈs festival.
Festivals can also be held to honour people. The examples are the Dragon Boat Festival in China to honour the famous ancient 5_________, Qu Yuan, Columbus Day in the USA, and a national festival on October 2 to honour Mohandas Gandhi, the leader who helped gain Indiaˈs 6__________．
People are grateful when they gather their food for the winter and finish their 7_____ (agriculture) work. So they celebrate the harvest, like Thanksgiving and the Mid-autumn Festival, which are very happy events.
The most 8________ (energy) and important festivals are the ones 9_________ look forward to the end of winter and the coming of spring. The Spring Festival is celebrated in China, while some Western countries have exciting carnivals.
People love to get together to eat, drink and 10__________with each other, which is satisfied by various festivals.