—_______ sleep do you think is necessary for a Grade 9 student? — 8 hours at least. A. How often B. ...
2022-10-06 19:58:58 37次 江苏南通启东中学苏教版初中牛津英语7A Unit5-6复习卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
—_______ sleep do you think is necessary for a Grade 9 student? — 8 hours at least.
A. How often B. How long C. How many D. How much
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