将下列句子改为被动语态1.I sent a letter to you last month.2.Do we use i

1.I sent a letter to you last month.
a letter was sent to you last month
2.Do we use it for cooking?
does it be used for cooking by us?
3.where did you build the bridge?
where was the bridge built?
4.Mother tells me a story every day.
a story is been told to me everyday by mother.
5.Can you finish his homework today?
can his homework be finished today by you?

1.A letter was sent to you last month by me.
2.Is it used for cooking?
3.Where was the bridge built by you?
4.A story is told to me by my mom every day.
5.Will his homework be finished by you today?

last month a letter was sent to you by me.
was it used for cooking?
where was the bridge built?
i was told a story everyday by my mother

A letter was sent to you by me last month.
Is it used for cooking by us?
where is the bridge built by you?
A story is told to me by mother everyday.
Can his homework be finished by you today?