问题补充:
is known to us, the 16th Asian Games will be held in Guangzhou, China in November, .
A. As
B. It
C. Which
D. What
答案:
(答案→)A. As
B. It
C. Which
D. What
解析:句意:我们都知道16届亚运会将在11月份在中国的广州举行。这里使用as引导非限制性定语从句,指代后面的句子,as在定语从句中做主语,it可以做形式主语,那么后面应该是that引导的主语从句,which引导非限制性定语从句的时候,不能在句首,what引导的是主语从句,所以选A。