Shanghai has hosted 2010 world Expo. The world Expo has long history but it has never been held in Asia.
A. ——；a
B. the ; a
C. the ; the
D. / ; /
网友回答
A. ——；a
(答案→)B. the ; a
C. the ; the
D. / ; /
解析：本题考查冠词。the 2010 world Expo特指2010年世博会；a long history一个很长的历史。根据句意选择B。