2188 is a lucky number, I suppose, that will bring us luck and fortune and will be loved by us all.
A. it
B. one
C. which
D. that
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A. it
(答案→)B. one
C. which
D. that
解析：考查代词：句意：2188是个幸运数字，我认为这是一个会带来好运的数字，我们所有的人都会喜欢的。这里指代a number，用one，I suppose是插入语，that引导的定语从句，修饰one，it指代“同类同物”which引导定语从句，这句话已经有that引导定语从句了，that特指前面的可数名词单数或是不可数名词，选B。