Придумать и записать 10 предложений в Passive, используя времена Present, Past, Future...

1.Helen was watered flowers yesterday.
2. Mike was done his homework yesterday.
3. America was discovered by Columbus.
4. The letter will be sent tomorrow.
5. This work will be done on time.
6. The book will not be ready.
7. The bread is baked every morning.
8. My dinner is cooked by my mother.
9. Paper is made from wood.
10. The pictures are drawn with a pencil.
Заранее пожалуйста) :)