英语变被动语态

题目

英语变被动语态
Northwest China grows the best cotton.
THE manager made them work 10 hours a day
China has sent up man made statellites into space
You must not plant trees in every day earth

答案

The best cotton is grown in Northwest China.
They are made work 10 hours a day (by the manager).
Man made statellites have been sent up into space by China.
Trees must not be planted in every day earth