they　warned　him　that　the　animal　was　dangerous改为被动语态

they　warned　him　that　the　animal　was　dangerous改为被动语态 英语的被动语态将下列句子改为被动语态He made me do that for him.Did they build They cieaned the floor.改为被动语态 They smashed the window.改为被动语态 改为被动语态 he made me do that for him They were repairing the car at that time改为被动语态. People thought that there was no water on the moon(改为被动语态） He was cleaning the class room at that time （改为被动语态） I heard him sing in the classroom改为被动语态? we saw him walk into the classroom 改为被动语态 They didn't tell tom the truth.改为被动语态 They saw Tom coming into the shop.改为被动语态