Gore made a call to Bush to ______ his defeat in the election, but he soon retracted it as word spread that the ballots had be recounted.
 
【正确答案】 D
【答案解析】 动词词义辨析。acknowledge承认;reckon计算,估计;confess坦白,忏悔;proclaim宣布,声明。根据句意,只有proclaim符合逻辑。故答案为D。