【题目】In his victory speech，______ before a huge crowd of his supporters，Obama declared that “change has come to America”．
A. having delivered B. to be delivered
C. delivering D. delivered
在线课程【答案】D
【解析】考查过去分词。句意：在面向大批支持者发表的获胜演讲中，奥巴马宣称“变革已经来到美国”。根据语意可知，Obama发表演讲是过去的事，所以用过去分词表示被动和完成，相当于“which was delivered”。故选D。