is known to us all is that the 2010 World Expo will take place in Shanghai. A. I
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_____ is known to us all is that the 2010 World Expo will take place in Shanghai.
A. It B. What C. As D. Which
试题答案
B
_____ is known to us all is that the 2010 World Expo will take place in Shanghai.
A. It B. What C. As D. Which
B