He noticed a boy come in the room,改为被动语态.
He noticed a boy come in the room,改为被动语态.
将She saw them come into the room改为被动语态
I saw the boy enter the room变成被动语态
He was cleaning the class room at that time (改为被动语态)
we heared him sing the song in the next room 改为被动语态
We must keep the air in the room clean.(改为被动语态)
初三英语1.I often see the boy play football in the park.(改为被动语态)
She saw them come into the room.变被动语态
将We often hear the girl sing happily in her room改为被动语态
I heard Amy singing in the next room just now.(改为被动语态)
We heard Kitty sing in the next room this morning.改为被动语态
Who helped you clean the room?(改为被动语态)