填空题 The Americans begin to decorate their homes and stores with Christmas trees and bright lights on Christmas Eve.

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【正确答案】 1、N    
【答案解析】这是对美国人如何过圣诞节的介绍，而不是追根溯源，故可定位于第一段。根据第一段第五句：“Since the last days of November American homes and stores have been decorated with Christmas trees and bright lights．”可判断本题答案为[N]。