______ World Exposition in 2010 is the f
问题:
______ World Exposition in 2010 is the first registered World Exposition in ______ developing country.
A./; a
B.The; a
C.The; /
D./; the
______ World Exposition in 2010 is the first registered World Exposition in ______ developing country.
A./; a
B.The; a
C.The; /
D./; the