change of voice — active to passive covering simple past, past continuous, and past perfect,

 

1. "The boy broke the window." (Simple Past)
A. The window was being broken by the boy.
B. The window has been broken by the boy.
C. The window was broken by the boy.
D. The window had been broken by the boy.

2. "The teacher was explaining the lesson." (Past Continuous)
A. The lesson was explained by the teacher.
B. The lesson had been explained by the teacher.
C. The lesson was being explained by the teacher.
D. The lesson has been explained by the teacher.

3. "The students had submitted the report before the deadline." (Past Perfect)
A. The report was submitted by the students before the deadline.
B. The report had been submitted by the students before the deadline.
C. The report was being submitted by the students before the deadline.
D. The report has been submitted by the students before the deadline.

4. "The police arrested the thief last night." (Simple Past)
A. The thief has been arrested by the police last night.
B. The thief was being arrested by the police last night.
C. The thief had been arrested by the police last night.
D. The thief was arrested by the police last night.

5. "The workers were repairing the road." (Past Continuous)
A. The road had been repaired by the workers.
B. The road was repaired by the workers.
C. The road was being repaired by the workers.
D. The road has been repaired by the workers.

6. "The chef had prepared the meal before the guests arrived." (Past Perfect)
A. The meal was prepared by the chef before the guests arrived.
B. The meal was being prepared by the chef before the guests arrived.
C. The meal has been prepared by the chef before the guests arrived.
D. The meal had been prepared by the chef before the guests arrived.

7. "My father bought a new car last week." (Simple Past)
A. A new car was being bought by my father last week.
B. A new car was bought by my father last week.
C. A new car had been bought by my father last week.
D. A new car has been bought by my father last week.

8. "The scientists were conducting an experiment." (Past Continuous)
A. An experiment was being conducted by the scientists.
B. An experiment had been conducted by the scientists.
C. An experiment was conducted by the scientists.
D. An experiment has been conducted by the scientists.

9. "The doctor had examined the patient before the nurse arrived." (Past Perfect)
A. The patient was examined by the doctor before the nurse arrived.
B. The patient was being examined by the doctor before the nurse arrived.
C. The patient had been examined by the doctor before the nurse arrived.
D. The patient has been examined by the doctor before the nurse arrived.

10. "The students completed the exam before the time was up." (Simple Past)
A. The exam was being completed by the students before the time was up.
B. The exam had been completed by the students before the time was up.
C. The exam has been completed by the students before the time was up.
D. The exam was completed by the students before the time was up.

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Answer Key

1. C
2. C
3. B
4. D
5. C
6. D
7. B
8. A
9. C
10. D