作业帮look what a nice classroom it is yes ,lt is cleaned every day .为什么是 is cleaned
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look what a nice classroom it is yes ,lt is cleaned every day .为什么是 is cleaned
look what a nice classroom it is yes ,lt is cleaned every day .为什么是 is cleaned
look what a nice classroom it is yes ,lt is cleaned every day .为什么是 is cleaned
这里的clean是动词 打扫的意思
因为正在对话,所以用一般时的is
be动词后加动词,用动词的过去分词形式
所以是is cleaned
it指教室，要用被动语态
意思是：教室每天被打扫。
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look ！what a nice classroom it is ! 看，多干净的教室啊
yes ,lt is cleaned every day 是啊，它每天都被打扫得很干净。
it is cleand. （教室）被打扫，
被动语态。
若有疑问及时追问，满意敬请采纳，O(∩_∩)O谢谢~~
因为是被打扫过的教室 所以才会很干净 既然是被打扫过的 也就是发生过的事情 也就是过去的事
所以用到了过去式cleaned
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look what a nice classroom it is yes ,lt is cleaned every day .为什么是 is cleaned