Obama has been elected first black President of the United States, and the international society expects to have new USA under his leadership.
A. /；the
B. a；the
C. the；a
D. the；the
网友回答
A. /；the
B. a；the
(答案→)C. the；a
D. the；the
解析： 第一个空表示顺序，所以序数词first前应填定冠词the，第二个空表示地点的专有名词USA前有形容词new修饰，故用不定冠词来限定。