◎ 题干
You'd better wake him up at once. He _____ for eleven hours already.
[     ]
A. has been asleep
B. has fallen asleep
C. has gone to bed
D. has gone to sleep
◎ 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“You'd better wake him up at once. He_____for eleven hours already. [ ]A. has been asleep B. has fallen asleep C. has gone to bed D. has gone to sleep …”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。