---Peterlookedtiredandalittleabsent-mindedinclass.---He_____toolate.A.m

发布时间:2020-08-13 22:05:10

---Peter looked tired and a little absent-minded in class.
---He _____ too late.A.may stay upB.could stay upC.should have stayed upD.must have stayed up

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D解析考查情态动词表推测的用法。must have done 表示对过去事情肯定的推测,句意: 皮特看起来很累在课上有点心不在焉。他一定熬夜熬得太晚了。所以选D。
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