问题补充:
Chinese culture has become interest for people all over the world since the Shanghai Expo and many foreigners are discovering history of China .
A. the ; x
B. an ; the
C. an ; x
D. the ; the
答案:
A. the ; x
(答案→)B. an ; the
C. an ; x
D. the ; the
解析:考查冠词:第一空填an,泛指“一种兴趣’,第二空填the,特指中国历史,句意是:自从上海世博会中国文化是全世界很多人感兴趣的事,很多外国人正研究中国历史。选B。