问题补充:
(山东滨州一模)Obama has been elected first black president of the United States, and the international society expects to have new USA under his leadership.
A 不填;the B a; theC. the ; a D the ; the
答案:
解析:序数词必须与定冠词the连用,表示顺序,所以第一空用the;表示地名或姓名的专有名词前有形容词修饰时,其转化为普通名词,这是要用不定冠词来限定。