1. He doesn't open the book.
→ The book isn't opened by him.
2. You don’t write the letter.
→ The letter isn't written by you.
3. Somebody hit me.
→ I was hit by somebody.
4. John collects stamps.
→ Stamps are collected by John.
5. They have not caught the thieves.
→ The thieves have not been caught.
6. My friend has written a emails for 2 hours.
→ A email has been written by my friend for 2 hour.
7. He spelt this word wrongly.
→ This word was spelt wrongly by him.
8. You have not sent letter.
→ Letter has not sent by you.
9.People won’t build a new bridge in this village.
→ A new bridge will not be built in the village.
10.What will Nam do tomorrow?
→ What will be done by Nam tomorrow?