题目内容

According to what he complained about, something must have gone wrong with the computer, ______?
A．mustn’t itB．didn’t heC．hasn’t heD．didn’t it
D

试题分析：考查反意问句：对已发生的过去情况的推测，若陈述句谓语部分有“must have done”，而且有表示过去的时间状语，问句部分用didn't；若没有表示过去的时间状语，问句部分用haven't或hasn't。这句话的what he complained about，说明是过去的情况。选D。
点评：反意问句遵循前否后肯，前肯后否的原则，对于情态动词的用法，要根据具体情况来定，must表示必须，反意问句用must来做，must be表示推测，和be动词一致。
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