Change of Voice - Solved Questions and Answers

Last Updated : 05 Sep, 2025

Change of Voice is the grammatical conversion of a sentence between active and passive.

Change of Voice questions and answers are provided below for you to learn and practice.

Question 1: Which of the following is the correct passive voice of the sentence: "She completed the project before the deadline"?

a) The project is completed by her before the deadline.

b) The project was completed by her before the deadline.

c) The project will be completed by her before the deadline.

d) The project has been completed by her before the deadline.

Solution: b) The project was completed by her before the deadline.

Explanation:
The sentence is in the past tense, so the correct passive form is in the past tense as well. "Was completed" is the correct passive form.

Question 2: Which of the following is the correct active voice of: "The cake was eaten by the children"?

a) The cake is eaten by the children.

b) The cake has been eaten by the children.

c) The children ate the cake.

d) The children are eating the cake.

Solution: c) The children ate the cake.

Explanation:
The passive sentence is in the past tense, so the active form should also be in the past tense: "ate" is the correct verb in this case.

Question 3: Which of the following is the correct passive voice of: "They are watching a movie"?

a) A movie is being watched by them.

b) A movie was being watched by them.

c) A movie has been watched by them.

d) A movie will be watched by them.

Solution: a) A movie is being watched by them.

Explanation:
The sentence is in the present continuous tense, so the correct passive form is "is being watched."

Question 4: Which of the following is the correct active voice of: "The book will be published next month by the company"?

a) The company will publish the book next month.

b) The company publishes the book next month.

c) The company is publishing the book next month.

d) The company published the book next month.

Solution: a) The company will publish the book next month.

Explanation:
The passive sentence uses the future tense ("will be published"), so the active form must also use the future tense: "will publish."

Question 5: Which of the following is the correct passive voice of: "People speak English all over the world"?

a) English is spoken all over the world.

b) English was spoken all over the world.

c) English will be spoken all over the world.

d) English is speaking all over the world.

Solution: a) English is spoken all over the world.

Explanation:
The sentence is in the present simple tense, so the correct passive form is "is spoken."

Question 6: Which of the following is the correct active voice of: "A letter had been written by her before she left"?

a) She wrote a letter before she left.

b) She had written a letter before she left.

c) She writes a letter before she left.

d) She is writing a letter before she left.

Solution: b) She had written a letter before she left.

Explanation:
The passive sentence is in the past perfect tense ("had been written"), so the active form must also be in the past perfect tense: "had written."

Question 7: Which of the following is the correct passive voice of: "Who taught you French?"

a) By whom were you taught French?

b) By who were you taught French?

c) Who is French taught by you?

d) Who was French taught by you?

Solution: a) By whom were you taught French?

Explanation:
In passive voice questions, "by whom" is the correct structure. "Were" is used for past tense in passive questions.

Question 8: Which of the following is the correct active voice of: "The room is cleaned every day by the janitor"?

a) The janitor cleans the room every day.

b) The janitor is cleaning the room every day.

c) The janitor cleaned the room every day.

d) The janitor has cleaned the room every day.

Solution: a) The janitor cleans the room every day.

Explanation:
The passive sentence uses the present simple tense ("is cleaned"), so the active form must also be in the present simple tense: "cleans."

Question 9: Which of the following is the correct passive voice of: "They have finished the project"?

a) The project is finished by them.

b) The project has been finished by them.

c) The project was finished by them.

d) The project will be finished by them.

Solution: b) The project has been finished by them.

Explanation:
The sentence is in the present perfect tense, so the correct passive form is "has been finished."

Question 10: Which of the following is the correct active voice of: "The house was being built by them"?

a) They were building the house.

b) They build the house.

c) They will build the house.

d) They had built the house.

Solution: a) They were building the house.

Explanation:
The passive sentence is in the past continuous tense ("was being built"), so the active form must also be in the past continuous tense: "were building."