GRAMMAR  - PASSIVES

CHOOSE THE BEST WAY TO CHANGE EACH SENTENCE TO PASSIVE:  

1)  He may forget the password.
The password may be forgot. 
The password may been forgot.
The password may have been forgotten.
The password may be forgotten.
2)  He should have done the assignment.
The assignment should have been done.
The assignment should be done.
The assignment should had been done. 
The assignment should have been did. 
3)   John has completed the project.
The project completed by John.
The project has been completed by John.
The project was completed by John.
The project has completed by John. 
4)  He didn't fix my computer.
My computer didn't need to be fixed. 
My computer has to be fixed..
My computer had to have been fixed.
My computer wasn't fixed..
5)  They ought to change the law.
The law ought to been changed. 
The law ought been change.
The law ought to be changed.
The law ought to have been changed.
6) We might see a comet tonight.
A comet might could be seen tonight.
A comet might be saw tonight.
A comet might be seen tonight.
A comet might have been seen tonight. 
7)  I have received your letter.
Your letter have been received by me.
Your letter has been received by me.
Your letter has been receiving by me. 
Your letter was received.
8)  She was reading a book by Tolstoy.
A book by Tolstoy has being read by her. 
A book by Tolstoy was being read by her.
A book by Tolstoy is being read by her.
A book by Tolstoy was read by her.
9)  She had seen the movie before.
The movie had been seen by her before. 
The movie had seen by her before. 
The movie was seen by her before.
The movie is seen by her before. 
10)   Haven't they painted the building yet?
Hadn't the building been painted yet?
Hasn't the building been painted yet?
Isn't the building painted yet?
Wasn't the building painted yet?
11)  Esther gave Sue a nice present.
Esther was given a nice present by Sue.
Sue was given a nice present by Esther.
A nice present was given to Esther by Sue.  
A nice present was given to Sue from Esther.
12)  A small red car hit the dog.
The dog was hit by a small red car.
The dog is hit by a small red car.
A dog was hitted by the small red car. 
The dog has hit by a small red car. 
13)  A thief stole Bob's painting.
Bob's painting has stole by a thief.
Bob's painting was stolen by a thief.
Bob's painting was stole by a thief.
Bob's painting was stealed by a thief. 
14)  The news surprised us all.
We all surprising by the news.
We all surprised by the news.
We all are surprised from  the news.
We all were surprised by the news.
15)  Where did she find the book?
Where is the book found?
Where has been found the book?
Where was the book found? 
Where was found the book? 
16) He cut the bread with a big knife.
The bread was cutted with a big knife.
The bread is cut with a big knife.
The bread was cut with a big knife.
The bread has cut with a big knife by him.
17)  Joan spread the newspaper out on the floor.
The newspaper was spreaded out on the floor by Joan.
The newspaper has spreaded out on the floor.
The newspaper is spreaded out on the floor. 
The newspaper was spread out on the floor.
18)  Where did he put the suitcase?
Where did the suitcase put by him?
Where was the suitcase put?
Where has the suitcase been put by him? 
Where was the suitcase putted?
19) Their father's stories amused them.
They were amused by their father's stories. 
They were amusing by their father's stories.
They amused by their father's stories.  
They had amusing by their father's stories.
20)  Ben drove me to the airport.
I was drove to the airport by Ben.
I was driven to the airport by Ben.
I was drived to the airport by Ben. 
I been drive to the airport by Ben.