将下列各句改为被动语态:1.I saw him walk into the next room just now.
将下列各句改为被动语态:1.I saw him walk into the next room just now.
2.The teacher asked me to carry the books to the classroom.
3.They make him work hard all day.
4.He has worked out the problem.
5.He is telling his mother what happened the day before.