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It is our duty to keep our classroom clean and tidy.中 our du

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It is our duty to keep our classroom clean and tidy.中 our duty 是什么语?
It is our duty to keep our classroom clean and tidy.中 our du
很高兴为您
It is our duty to keep our classroom clean and tidy
It is + 名词 + to do sth 结构
to do sth是主语 名词是表语
此句中,to keep.tidy 不定式短语作主语,is 系动词,our duty表语
译为：保持教师干净整洁是我们的职责.
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It is our duty to keep our classroom clean and tidy.中 our du It is our duty to keep our classroom clean and tidy.中的It《our It is our duty to keep our classroom clean and tidy.句中的 clea It is our duty to keep our classroom clean and tidy.这句话谁做主语谁 It is our duty to keep our schoolyard clean and tidy.这句话是主语从 It is our duty to keep our e___ clean and tidy I think it's our duty to keep our environment clean and tidy 1、To keep our environment clean and tidy is our duty.(改为同意句） 英语句型转换1、To keep our environment clean and tidy is our duty.( Everyone is s____to keep our classroom clean and tidy We feel _____ our duty to keep our city clean and tidy. We should keep our classroom clean and tidy.