TheEnglishbookwassointerestingthat

发布时间:2020-07-26 11:32:30

The English book was so interesting that he had read it for 3 hours ________ he realized.A.whenB.untilC.beforeD.after

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C解析此句的意思是“这本书太有趣了,他不知不觉地读了3个小时”,即:在他意识到“之前”,他已经读了3个小时。
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