She ______have stopped her work halfway.A.ought to notB.ought not toC.not ought toD.does not ought to
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B解析试题分析:句意:她不应该半路停止工作。这里是ought to have done否定的形式,应该是ought not to have done,故选B。考点:考查情态动词的用法。
点评:本题难度适中。对于情态动词的各种否定形式也是高考常考的内容,需要考生牢记它们的用法,这里考生容易误选A。即学即练:—I didn’t tell my parents the secret yesterday.—But you __________.A. ought to do B. ought toC. should D. ought to have解析:D。句意:因为上半句是过去时,所以是对过去事实表示推测,应该用“情态动词+完成时”。而D项就是这种形式的省略。