将We often hear the girl sing happily in her room改为...

题目

将We often hear the girl sing happily in her room改为被动语态

字母窤磍彝 英语 2014-11-26

优质解答

The girl is often heard to sing happily in her room .
【hear sb do sth 改为被动语态时,do 要变成 to do】
再如：He was made to work so long.