问题补充：
After a hard ---fought campaign, Barack Obama won the US presidential election, and became
President of the United States---the first African –American in
country’s history to do so.
A. the; the
B. /; /
C. /; the
D. the; /
答案：
A. the; the
B. /; /
(答案→)C. /; the
D. the; /
解析：可联系答.案.网客服索取。
