问题
选择题
______ is well-known to all is that the 2010 Shanghai World Expo has been brought to an end.[ ]
A. As
B. That
C. What
D. It
答案
答案：C
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______ is well-known to all is that the 2010 Shanghai World Expo has been brought to an end.[ ]
A. As
B. That
C. What
D. It
答案：C