there is going to be a policy change of those things is going to change.
A. Unless; few
B. Until; few
C. Unless; none
D. Until; none
网友回答
A. Unless; few
B. Until; few
(答案→)C. Unless; none
D. Until; none
解析：考查状语从句。Until引导时间状语从句；unless“除非”，相当于if...not，引导条件状语从句。句意“除非政策有所改变，不然这些事情都不会改变。”D项句意不符。故选C。