— ______sleep do you think is necessary for a Grade 9 student? — 8 hours at leas
题型：不详难度：来源：
— ______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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答案
| D |
解析
试题分析：句意：你认为对于一个九年级的学生多少睡眠是必要的。至少八个小时。A. How often 多久一次B. How long 多久 C. How many多少，加不可数名词D. How much 多少，加不可数名词。sleep,不可数名词，故选D。 |
举一反三
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