当某人睡觉时最好保持安静用英语怎么说?

题目

当某人睡觉时最好保持安静用英语怎么说?
我觉得应该是When someone is sleeping,it is best to keep quiet.可老师在黑板上板书When someone is sleep,it is best to keep quiet.

答案

你的想法是正确的.
" It is best to keep quiet when someone is sleeping."
或者 " It is best to keep quiet when someone is asleep."
这两句话都是正确的.asleep 是形容词,表示睡着的.sleep是名词或者不及物动词,
不能用作形容词.
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