◎ 题干

_____, I could not memorize the text. 
A.However hard did I tryB.However hard I tried
C.However I tried hardD.However I had tried hard
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“_____, I could not memorize the text.A.However hard did I tryB.However hard I triedC.However I tried hardD.However I had tried hard…”主要考查了你对  【therebe句型】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。