问题补充:
Shanghai is most beautiful city and we are excited that the World Expo has been great success.
A. a; a
B. the; a
C. a; the
D. the; the
答案:
(答案→)A. a; a
B. the; a
C. a; the
D. the; the
解析:考查冠词。a most beautiful city一座非常漂亮的城市,success作“成功的人或事”之意,为可数名词,故选A。