◎ 题干
“Could you tell me______?”
“ Yes. They ____ to the library.”
[     ]
A. where are the twins, have been    
B. where were the twins, have been
C. where the twins are, have gone    
D. where the twins were, have gone
◎ 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““Could you tell me______?”“ Yes. They ____ to the library.”[ ]A. where are the twins, have been B. where were the twins, have beenC. where the twins are, h…”主要考查了你对  【一般现在时】【现在完成时】【宾语从句】  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。