问题
选择题
is known to us all is that the 2008 Olympic Games will take place in Beijing.
A．It
B．What
C．As
D．Which
答案
答案 B
解析 分析题干结构“ is known to us all”是主语从句，从句中缺少主语，what引导主语从句，在从句中作主语。如果选it，需去掉all后的is;如果选as;需去掉is that。
【标签】(08福建27)