________hardbefore,Tomisafraidoffa

发布时间:2020-07-25 18:15:55

________hard before, Tom is afraid of failing in the examA.Having been workedB.Not to have workedC.Having never workedD.Never have worked

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C解析考察非谓语动词.句意:从来没有努力学习过.汤姆担心考试会不及格. 现在分词表示正在进行的伴随性动作,和句子主语是主谓关系. 如果动作发生在谓语动词之前,则要用完成事态的现在分词,结合语境可知选C
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