问题
选择题
In this victory speech ________ before a huge crowd of his supporters, Obama declared that “Change has come to America”.
A．delivered
B．to be delivered
C．having delivered
D．delivering
答案
答案：A
题目分析：句意：在这个在支持者前面所做的演讲中奥巴马宣布美国已经发生了改变。这里需要非谓语动词做定语，因为speech和deliver是被动关系，用过去分词做定语，所以选A。