1/ Tom delivers the mail every day

=>  The mail is delivered every day by Tom.

2/ Fire destroyed that house

=> That house was destroyed by fire.

3/ Bob took that book from the desk

=> That book was taken from the desk by Bob.

4/ Barbara will eat the cake

=> The cake will be eaten by Barbara.

5/ Beth has finished the report

=> The report has been finished by Beth.

6/ The police easily captured the thief

=> The thief was easily captured by the police.

7/ The students attended the lecture

=> The lecture was attended by the student. 

8/ The movie disappointed us very much

=> We were disappointed very much by the movie.

9/ Mr. John manages the export division

=> The export division is managed by Mr.Jonh.

10/ John returned the money last night

=> The money was returned last night by John.

11/ The teacher corrects our exercises

=> Our exercises are corrected by the teacher.

12/ They started a dancing class last week

=> A dancing class was started last week by them.

13/ Mr. Smith saw the accident

=> The accident was seen by Mr.Smith.

14/ Somebody has taken my briefcase

=> My briefcase has been taken.

15/ The teacher returned our written work to us

=> Our written work was returned to us by the teacher.

16/ She has finished the report by noon

=> The report has been finished by noon by her.

17/ The mad dog bit the little boy

=> The little boy was bitten by the mad dog.

18/ The police have arrested five suspects

=> Five suspects have been arrested by the police.

19/ The doctor ordered him to take a long rest

=> He was ordered to take a long rest.

20/ Lightning struck the house

=> The house was struck by lightning.

1/ Tom delivers the mail every day
 ---> the mail is delivered every day by Tom
2/ Fire destroyed that house
----> that house was destroyed by fire
3/ Bob took that book from the desk
----> that book was taken from the desk by Bob
4/ Barbara will eat the cake
----> the cake will be eaten by Barbara
5/ Beth has finished the report
----> the report has been finished by Beth
6/ The police easily captured the thief
----> the thief was easily captured by the police
7/ The students attended the lecture
----> the lecture was attended by the students
8/ The movie disappointed us very much
---> we were disappointed very much by the movie
9/ Mr. John manages the export division
----> the export division is managed by Mr.John
10/ John returned the money last night
---> the money was returned last night by John
11/ The teacher corrects our exercises
---> our exercises are corrected by the teacher
12/ They started a dancing class last week
---> a dancing class was started last week by them
13/ Mr. Smith saw the accident
---> the accident was seen by Mr.Smith
14/ Somebody has taken my briefcase
---> my briefcase has been taken
15/ The teacher returned our written work to us
---> our written work was returned to us by the teacher
16/ She has finished the report by noon
---> the report has been finished by noon by her
17/ The mad dog bit the little boy
---> the little boy was bitten by the mad dog
18/ The police have arrested five suspects
----> five suspects have been arrested by the police
19/ The doctor ordered him to take a long rest
----> he was ordered to take a long rest by the doctor
20/ Lightning struck the house
---> the house was struck by lightning
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