______harder, he would have got through the exams.A、Had he workedB、He had worke

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问题 ______harder, he would have got through the exams.

选项 A、Had he worked
B、He had worked
C、Should he work
D、He worked

答案 A

解析 由主句would have got可知是表示过去的虚拟,从句应该用过去完成时,排除[C]、[D];if引导的虚拟条件句中的if可以省略,然后将had等助动词提前至句首,采用倒装形式,故[A]正确。
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