◎ 题干
I am very thankful to my English teacher,           I have made great progress.      
[     ]
A. by whose help              
B. with whose help      
C. with his help              
D. by his help
◎ 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 am very thankful to my English teacher, I have made great progress.[ ]A. by whose helpB. with whose helpC. with his help D. by his help…”主要考查了你对  【关系代词】【介词和介词短语】【限制性定语从句】  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。