◎ 题干
—Where is Tom? Mr wang is looking for him.
—Sorry, I don't know. Maybe he ______ to the library.  
[     ]
A. went            
B. gone          
C. has been        
D. has 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“—Where is Tom? Mr wang is looking for him.—Sorry, I don't know. Maybe he ______ to the library.[ ]A. wentB. goneC. has beenD. has gone…”主要考查了你对  【现在完成时】  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。