She didn't work hard at her lessons so she failed ________ all the exams.A.to passB.passingC./D.A and C
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D解析解析:fail是动词,意为“没有能够”,表示“没有做某事”,常用fail to do sth结构,但fail后不能接v. -ing形式,在指某门学科考试不及格时可以说:fail the exam或fail to pass the exam或didn't pass the exam或fail in the exam等。因此可判断A、C两项都对,故选D。题意为:她学习不努力,因此她所有的考试都不及格。