改写为被动语态肯定、被动语态否定和被动语态疑问We plant trees every year.2、I sweep the floor at 7:00every day.
问题描述：
改写为被动语态肯定、被动语态否定和被动语态疑问
We plant trees every year.
2、I sweep the floor at 7:00every day.
答
Trees are planted every year.
Trees aren't planted every year.
Are trees planted every year?
The foor is swept by me at 7:00 every day.
The foor isn't swept by me at 7:00 every day.
Is the foor swept by you at 7:00 every day?