His promise he would give away half of the year’s income to the disabled turned out a lie

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A. which; what
(答案→)B. that; which
C. what; which
D. which; that
解析：本题第一空是一个同位语从句that he would give away half of the year’s ine to the disabled对前面的名词promise的内容进行的解释说明，that在句中不充当任何成分，只起引导作用和连接作用，也没有实际的含义。第二空的which引导的是一个非限制性定语从句，which指代前面一句话的内容在句中做主语。That不能引导非限制性定语从句，what不能引导定语从句。句义：他要把一年一半的收入捐给残疾人的诺言结果证明是一个谎言，这让公众感觉被欺骗了。故B正确。