请那位高手帮我把下面的英语改为被动语态,谢谢了

Question

1.We can use coat to keep warm
2.people produce silk in Hangzhou
3.The opened the school in 2002
4.They one writting a novel
5.They have to give me a book

Answer 1

1. Coat can be used (by us) to keep warm.
2. Silk is produced (by people) in Hangzhou.
3.原句应该是: They opened the school in 2002.
The school was opened by them in 2002.
4. 原句应该是:They are writing a novel.
是writing 不是writting
A novel is being written by them.
注意是written.
5. A book has to be given by them to me.

Answer 2

有些错了,改一下

coat is used by usto keep warm
silk is produced in hangzhou
the school was opened in 2002
a novel is being writtten by them
a book is given to me by them

Answer 3

1. coat can be used to keep warm
2. silk is produced in Hangzhou
3. the school was opened in 2002
4. 这个句子你可能写错了吧
a novel is being written.
5. a book is needed to give to me.

Answer 4

Coats can be used to keep us warm.
Silk is produced in Hangzhou.
The school was opened in 2002.
A novel is being written by them.
I have to be given a book by them.

Answer 5

1.Coat can be used to keep warm by us.
2.Silk is produced in Hangzhou by people.
3.The school was opened in 2002.
4.A novel is being written by them.
5.I have to be given a book by them.