Chinese President Hu Jintao paid visit to the Shanghai World Expo Park on Thursday, two days ahead of opening of the global event.
A. the; the
B. a; a
C. a; the
D. the; 不填
网友回答
A. the; the
B. a; a
(答案→)C. a; the
D. the; 不填
解析：考查冠词。pay a visit to参观；the opening of the global event.特指全球事情的开幕式，故选C。