◎ 题干
The thought of going back home was__________kept him happy while he was working abroad.   
 
[     ]
A that            
B. all that    
C. all what    
D. which
◎ 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“The thought of going back home was__________kept him happy while he was working abroad.[ ]A thatB. all that C. all what D. which…”主要考查了你对  【不定代词】【关系代词】【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。