根据短文内容，选择合适的单词填到空格中，并使用该词的恰当形式。每个单词只能用一次。

arrive    agriculture    custom   feast    independent    sad

 It is obvious that festivals are times of happiness, fun and excitement, not of  小题1:     .
There are festivals to celebrate almost every kind of happy event. Some are for  小题2:          
reasons, such as the beginning of the planting season or at harvest time. Others are in memory of one-time events, such as the    小题3: of a country or the    小题4:  of a famous person, like Columbus Day in the USA. No matter what the reason, however, festivals are always times for great    小题5:   with lots to eat, special and often new clothing to wear and generally lots of fun.