帮忙检查检查主动变被动的英语句子.

题目

帮忙检查检查主动变被动的英语句子.
1：You must do this as soon as possible
This thing must been done by you as soon as possible
2:We must take good care of the children
The children must been taken good care of bu us
3:Students must make good use of their time in class
Student's time must been made good use of by them in class

答案

1This thing must be done by you as soon as possible.2The children must be taken good care of bu us.3Student's time must be made good use of by them in class注意：情态动词后面加的是动词的原型.因此,must...