change these sentences into passive voice.but DON'T use by. 被动语态 不用bychange these sentences into passive voice.but DON'T use by.1.People must return library books within three weeks.2.You should keep all medicine in a locked cupboard.3.Cu

change these sentences into passive voice.but DON'T use by. 被动语态 不用bychange these sentences into passive voice.but DON'T use by.1.People must return library books within three weeks.2.You should keep all medicine in a locked cupboard.3.Cu
change these sentences into passive voice.but DON'T use by. 被动语态 不用by
change these sentences into passive voice.but DON'T use by.
1.People must return library books within three weeks.
2.You should keep all medicine in a locked cupboard.
3.Customers cannot exchange goods without a receipt.
4.Patients should not take these pills more than twice a day.
5.They may hoist the typhoon signal NO.8 later today.
6.We will not allow children wearing school uniforms into Internet cafe.
7.Can people use this shampoo every day?
8.Students must not borrow this equipment without permission.
9.The government should prohibit smoking in public.
10.People can buy vitamin pills at a chemist's.

change these sentences into passive voice.but DON'T use by. 被动语态 不用bychange these sentences into passive voice.but DON'T use by.1.People must return library books within three weeks.2.You should keep all medicine in a locked cupboard.3.Cu
1.Library books must be returned within three weeks.
2.All medicine should be kept in a locked cupboard.
3.Goods cannot be exchanged without a receipt.
4.These pills should not be taken more than twice a day.
5.The typhoon signal NO.8 may be hoisted later today.
6.Children will not be allowed wearing school uniforms into Internet cafe.
7.Can this shampoo be used every day?
8.This equipment must not be borrowed without permission.
9.Smoking should be prohibited in public.
10.Vitamin pills can be bought at a chemist's.

Library books must be returned within three weeks.
All medicine should be kept in a locked cupboard.
Goods can't be exchanded without a receipt.
These pills should not be taken more than...

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Library books must be returned within three weeks.
All medicine should be kept in a locked cupboard.
Goods can't be exchanded without a receipt.
These pills should not be taken more than twice a day.
5.The typhoon may be hoisted signal NO.8 later today.
6 children are not be allowed wearing school uniforms into Internet cafe.
7.Can this shampoo be ysed every day?
8. This equipment must not be borrowed if students have no permission.
9.Smoking should be prohibited in public.
10.Vitamin pills can be bought at a chemist's

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