The classroom is cleaned by the students.

The classroom is cleaned by the students. The students cleaned the classroom (by themselves)还是(themsel The classroom is cleaned (by the students)every day.括号里面的做什么 The students have cleaned the classroom,_______? Isn't the classroom cleaned by the students every day?如何改为主动 the classroom —cleaned by some student 被动语态有 宾语么?The classroom was cleaned (by us/students).My home 被动变主动：The classroom is being cleaned.（the students作主语） the students have cleaned their classroom already.改否定句 The students made their classroom clean 还是cleaned? he has cleaned the classroom 对 cleaned the classroom提问 Who cleaned the classroom is a question( )we should answer