◎ 题干
—_____do you sleep every night?
—Six to eight hours.
[     ]
A. How long
B. How often  
C. How
D. How many times
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据魔方格专家分析,试题“—_____do you sleep every night? —Six to eight hours.[ ]A. How long B. How oftenC. How D. How many times…”主要考查了你对  【疑问词组】  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。