◎ 题干
It’s no use arguing with him; _____ to persuade him to join us, he did not change his mind.
[     ]
A. however I tried hard
B. however hard did I try
C. however hard tried I
D. however hard I tried
◎ 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“It’s no use arguing with him; _____ to persuade him to join us, he did not change his mind.[ ]A. however I tried hardB. however hard did I tryC. however ha…”主要考查了你对  【状语从句】  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。