◎ 题干
We mustn't waste anything.____ , you shouldn't waste time.   
[     ]
A. After all          
B. Above all  
C. At all        
D. In all
◎ 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“We mustn't waste anything.____, you shouldn't waste time.[ ]A. After allB. Above all C. At all D. In all…”主要考查了你对  【介词和介词短语】  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。