把下列句子改为被动语态.

题目

把下列句子改为被动语态.
1.The students must wear scool clothes at school.
2.People often see her under the tree.
3.People brought tea to weastern world.
4.Someone turned off the light.
5.The teacher will sak me a question next class.
6.We use a pen to write.
7.They invented this tool in 1908.
8.The formers have planted for more than 100 years.
9.They caught the bad man just now.
10.They have mended many desks and chairs.
11.The workers are building a bridge now.
重要的是准确率。
麻烦答题者认真答题。

答案

1.School clothes must be worn at school by students.
2.She often is seen under the tree by people.
3.Tea was brought to weastern world by people.
4.The light was turned off by someone.
5.I will be asked a question next class by the teacher.
6.A pen is used to write by us.
7.This tool was invented in 1908 by them.
8.Plants have been planted for more than 100 years by the farmers.
9.The bad ban was caught just now by them.
10.Many desks and chairshave were mended by them.
11.A bridge is building now by the workers.