The classroom must be cleaned every day
The floor was swept yesterday
A new bike was bought (by Jim) last week
The light bulb was invented by Adison
We must clean the classroom every day.
We must clean the classroom every day.
He swept the floor yesterday.
Jim bought a new bike last week.
Adison invented the light bulb.改为被动语态
He swept the floor yesterday.
Jim bought a new bike last week.
Adison invented the light bulb.改为被动语态
英语人气：518 ℃时间：2019-11-20 03:26:27
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