问题补充:
The number 5.12 is a special number, ,I think, that will be remembered by Chinese people forever.
A. what
B. it
C. which
D. one
答案:
A. what
B. it
C. which
(答案→)D. one
解析:考查代词:5.12是我认为的一个特殊的数字, 应该被记住的数字。I think是插入语,先可以不看,从而看出有that引导定语从句,不能用which,也不是名词性从句,不能用what,这里需要代词,指代a special number,而且是同位关系,one可以泛指“可数名词单数”,it是特指同类同物,选D。