把下列句子改为被动语态.

把下列句子改为被动语态.

题目
把下列句子改为被动语态.
1.He often plays football.
2.Did he buy the apples?
3.I can't finish the work.
4.I will give him a new pen.
5.When do people often plant tress?
答案
Football is often played by him.Were the apples bought by him?The work can't be finished by me.A new pen will be given to him by me.When are the trees often planted by people?
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