注意;A of B 的情况;我认为这个和其它介词短语应该并没有什么不同,具体修饰那一个要看逻辑,有的时候单复数也可帮助判断
以下情况指代B
Construction of the Roman Colosseum, which was officially known as the Flavian Amphitheater, began in A.D.69, during the reign of Vespasian, and was completed the Colosseum with a one-hundred-day cycle of religious pageants, gladitorial games, and spectacles.