阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
(2015·山西省四校联考)
Hongbao, a red envelope with small amounts of money in, is a gift that is guaranteed to be warmly received, not just because of the cash, but also because of its __1__(tradition) symbolism and best wishes for the future. This is true throughout China, but __2__(especial) in the south where people regard receiving hongbao __3__ an auspicious(吉祥的)beginning to the New Year.
