is known to us all that the 2012 Olympic Games will take place in LondonA. ItB. WhichC.

发布时间：2020-08-16 18:54:56

     is known to us all that the 2012 Olympic Games will take place in London．
A. It
B. Which
C. As
D. What

网友回答

(答案→)A. It
B. Which
C. As
D. What
解析：考查主语从句。句中it作形式主语，真正的主语为that the 2012 Olympic Games will take place in London。
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