将下列句子改写成为被动语态You must not take these magazines out of the libra1.You must not take these magazines out of the library.2.All the student have read this story.3.They can finish the work in three days.4.We shouldn't throw waste paper on the floor.5.The boy hasn't finished his homework yet.
问题描述：
将下列句子改写成为被动语态You must not take these magazines out of the libra
1.You must not take these magazines out of the library.
2.All the student have read this story.
3.They can finish the work in three days.
4.We shouldn't throw waste paper on the floor.
5.The boy hasn't finished his homework yet.
答
1.These magazines mustn't be taken out of the library.
2.This story has been read by all the student.
3.The work can be finished in three days.
4.Waste paper shouldn't be thrown on the floor.
5.The boy's homework hasn't been finished yet.