the students are cleaning the classroom(用often改写句子）

the students are cleaning the classroom(用often改写句子） The students are cleaning the classroom.用often改句子 The students are cleaning the ciassroom.(用often改写句子） The students are cleaning the classroom. They students are cleaning the classroom 对cleaning the class The students are (cleaning the classroom.) 对括号部分提问 The students are cleaning the classroom改为被动语态 the students are cleaning the classroom 否定句 改错：Are the students cleaning the classroom right now?急 most.of.students.are.busy.cleaning.the.classroom求翻译 改错：Listen!The five students are cleaning their classroom. the students are cleaning the classroom.(改一般疑问句并否定回答）要写出原因!