◎ 题干
Jack is said____    for a fortnight  since he went to bed.
[     ]
A. to sleep    
B. to be sleeping  
C. to be slept    
D. to have been sleeping
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Jack is said____for a fortnightsince he went to bed.[ ]A. to sleepB. to be sleepingC. to be sleptD. to have been sleeping…”主要考查了你对  【不定式的完成式】【不定式的进行式】  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。