To be healthy, one must have at least _____ sleep every day. A. eight hours B. eight hour’s C. eight...
2022-10-10 23:44:23 43次 2018年秋九年级（人教版）英语课时同步练习卷：Unit 6 SectionB 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
To be healthy, one must have at least _____ sleep every day.
A. eight hours B. eight hour’s C. eight-hour’s D. eight hours’
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