They were cleaning the room at the time.改为被动语态
They were cleaning the room at the time.改为被动语态
He was cleaning the class room at that time (改为被动语态)
They were cleaning the room at this time yesterday.(改为同义句)
They were repairing the car at that time改为被动语态.
They are cleaning the room now.改成被动语态
The students are cleaning the classroom改为被动语态
They were listening to a program at that time.改为被动语态
They were listening to a progarm at that time. 改为被动语态
英语被动语态改成被动语态1 He is cleaning the classroom2 They have finish
They cieaned the floor.改为被动语态
They smashed the window.改为被动语态
they took the sick boy to the hospital at once改为被动语态 at once