___________2010 Shanghai World Expo will
题型:选择题
问题:
___________2010 Shanghai World Expo will launch ___________underground network of 700 kilometers of pipes to provide natural hearting and cooling.
A.The; an
B.The; the
C.不填;the
D.不填;an
___________2010 Shanghai World Expo will launch ___________underground network of 700 kilometers of pipes to provide natural hearting and cooling.
A.The; an
B.The; the
C.不填;the
D.不填;an