问题标题:
—Theterribleaccidentisunderinvestigation.—Actually,quickeraction_____thoseworkerstrappedinthemine.A.mighthavesavedB.musthavesavedC.shouldhavesavedD.couldhavesaved
问题描述:
—Theterribleaccidentisunderinvestigation. | |
A.mighthavesaved | B.musthavesaved |
C.shouldhavesaved | D.couldhavesaved |
宋进良回答:
D考查情态动词及虚拟语气。mighthavedone对过去可能性的推测,musthavedone对过去肯定的推测,shouldhavedone本应该做某事,实际上没有做,couldhavedone本可以做某事,实际上没做,根据句意...
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