2. 职称考试
  3. Nancy′ s gone to work but her car′ s still there. She __________ by bus.A.must h

Nancy′ s gone to work but her car′ s still there. She __________ by bus.A.must h

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问题 Nancy′ s gone to work but her car′ s still there. She __________ by bus.
选项 A.must have gone

B.should have gone

C.ought to have gone

D.could have gone
答案A
解析考查情态动词。句意为“南希已去上班，但她的车还在那儿。她一定是乘了公交车去的”。musthavedone是对过去事情的肯定推测，符合句意。should／ought t ohave done“本应该做某事却没有做”．Couldhave done“本可以做某事却没有做”，显然均不符合题意。
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