Had he worked harder, he ________ the exams．A.must have got throughB.would have got throughC.would get throughD.could get through
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B解析本题前半句是表示与过去事实相反的虚拟条件从句，后半句是表示与过去事实相反的主句。相当于：If he had worked harder, he would have got through the exams．must have got through(肯定已经通过)表示一种对过去事情的主观推测，不是与过去事情相反的情况。