将下列句子改为被动语态.We must water the flowers. People cut down a lot of trees every year.He cleaned his bedroom just now.The teacher won't open the window.Mary has forgotten the book.
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![将下列句子改为被动语态.We must water the flowers. People cut down a lot of trees every year.He cleaned his bedroom just now.The teacher won't open the window.Mary has forgotten the book.](/uploads/image/z/5779260-36-0.jpg?t=%E5%B0%86%E4%B8%8B%E5%88%97%E5%8F%A5%E5%AD%90%E6%94%B9%E4%B8%BA%E8%A2%AB%E5%8A%A8%E8%AF%AD%E6%80%81.We+must+water+the+flowers.+People+cut+down+a+lot+of+trees+every+year.He+cleaned+his+bedroom+just+now.The+teacher+won%27t+open+the+window.Mary+has+forgotten+the+book.)
将下列句子改为被动语态.We must water the flowers. People cut down a lot of trees every year.He cleaned his bedroom just now.The teacher won't open the window.Mary has forgotten the book.
将下列句子改为被动语态.We must water the flowers. People cut down a lot of trees every year.
He cleaned his bedroom just now.
The teacher won't open the window.
Mary has forgotten the book.
将下列句子改为被动语态.We must water the flowers. People cut down a lot of trees every year.He cleaned his bedroom just now.The teacher won't open the window.Mary has forgotten the book.
1、The flowers must be watered by us .
2、A lot of trees are cut down by people every year .
3、His bedroom was cleaned by him just now.
4、The window won't be opened by the teacher.
5、The book has been forgotten by Mary .