问题补充:
is well known to us all is Yao Ming has become the boss of the Shanghai Sharks, who attended the opening ceremony of the new CBA season on Dec. 19, .
A. It; that
B. What; what
C. As; that
D. What; that
答案:
A. It; that
B. What; what
C. As; that
(答案→)D. What; that
解析:考查主语从句和表语从句:第二个is前面的都是主语从句,主语从句中缺少的是主语,用what引导主语从句,is后面的是表语从句,从句中意思完整,用that连接。句意:我们都知道的是姚明成为了上海Sharks的老板,在的12月份参加了CBA赛季的开幕式。选A。