问题标题:
IfTom____(study)harderbefore,he____(pass)theexaminationlastweek.
问题描述:
IfTom____(study)harderbefore,he____(pass)theexaminationlastweek.
牛德雄回答:
hadstudied;wouldhavepassed
考察虚拟语气,与过去事实相反,从句谓语用had+过去分词;主句谓语用would/should/could/might+have+过去分词
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