将句子转化为被动语态.We should do something to improve our environment看补充1.We should do something to improve our environment.( ) ( ) ( ) ( ) to improve our environment.
问题描述：
将句子转化为被动语态.We should do something to improve our environment看补充
1.We should do something to improve our environment.
( ) ( ) ( ) ( ) to improve our environment.
答
Something should be done to improve our environment.
答
1.We should do something to improve our environment.
( Something ) ( should ) ( be ) ( done ) to improve our environment.