[单选题]The government claimed that tax cuts benefited the poor most, ()has yet to be proved in practice.

A

it

B

who

C

that

D

which

正确答案:D
题目解析

句意:政府声称减税使穷人受益匪浅,这在实践中尚未得到证实。空格处引导非限定性定语从句,which可以指代前面整个句子。

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