【正确答案】:
IN LONDON, A SERIES OF ACTIVITIES FOR THE SPRING FESTIVAL WAS ORGANIZED BY WESTFIELD, THE LARGEST SHOPPING CENTER THERE.
【题目解析】:In London, a series of activities for the Spring Festival was organized by Westfield, the largest shopping center there. (考点:介词的使用,将at替换为by, 本局强调的重点是迎春活动是由韦斯特菲尔德购物中心举办的,而不是强调地点。)