改被动语态 They have found ways to make waste water clean.

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• 帮忙把下面的英语句子改为被动句,1has anybody fed the birds2Someone must take care of the children when we go out3They have found ways to make waste water clean4you must not take these magazines out of the room
• They have found ways to make waste water clean.的被动语态则怎么变?
• Have you found ways to make waste water clean?改为被动语态
• They have found ways to make waste water clean
• 改被动语态 They have found ways to make waste water clean.
• 初中英语改为被动语态.1.people will never forget the accident 2.you may write this in pencil3.they are repairing the garage4.someone must have turned in the light without your notice5.they have foudn ways to make waste clean6.someone must take care of the children when we go out7.they won't hold the meeting until next Friday
• The ways to make waste water clean have been found by them.翻译
• They have found a way to make waste water clean.如何让改为被动语态
• Have you found ways to make waste water clean?改为被动语态
• They have found ways to make waste water clean.的被动语态则怎么变?
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• 1、 规定X▷Y=5X-4Y,已知X▷（5▷2）=14,求X的值2、 X、Y表示两个数,规定新运算“○”及“▷”如下：X○Y=6X+5Y,X▷Y=3XY,已知（2○3）▷A=324,求A3、 规定A○B=（A+b）÷b,已知x○四分之三=2,求X的值【注意▷是个三角形、○是圆圈不是0,这3个题目都是解方程】