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ation in the folks, nowadays, sometimes use paper pumpkins for __4__. Some years ago, the holiday was celebrated by __5__ in strange and frightening clothes and __6__ tricks on one’s neighbors and friends , such as ringing door bells,throwing bits of corn on the windowpanes(窗玻璃 ), and in other ways of making little __7__. More recently, children e to the door to have friends and neighbors __8__ their clothes and guess who they are behind the strange masks and __9__ treats of candies, fruits or say “Trick or Treat” , which __10__ “I will play a trick on you if you don’t want to give me a treat.” This practice has even more recently developed into an important __11__ of along with candies,the children __12__ money for UNICEF(United Nations International Children’s Emergency Fund). This __13__ collection of money by children for needy children throughout the world is known as “UNICEF Trick or Treat” . __14__ only recently,it results in sever