Grammar test. Module 4. Change the sentences using Passive Voice. 1. They dust the flat every day. 2. They will stage this performance at the end of next season. 3. Alexander Bell invented the telephone in 1876. 4. They will discuss the book at the next conference. 5. He will write a very interesting article. 6. I spent all my money on books last month. 7. Linda will show you a new photo album. 8. They show many French films on Japanese television. 9. The twins brought 2 cute kittens home yesterday. 10. Bill's friends called a taxi half an hour ago. 11. They make paper from wood. 12. They didn't read the book yesterday. 13. I spent all my pocket money on books last week. 14. You should write the word without mistakes. 15.They make butter from milk. 16.You must book the tickets for the play.

Sure! Let's go through each sentence and change them using the passive voice. I will provide a step-by-step explanation for each sentence along with the answer.

1. The flat is dusted every day.
- In the active voice, "they" is the subject performing the action of dusting the flat. To change it into passive voice, the subject becomes the flat, and the verb is changed to its passive form "is dusted."

2. This performance will be staged at the end of next season.
- Similar to the previous sentence, we change the subject "they" to "this performance," and the verb "will stage" becomes "will be staged" in its passive form.

3. The telephone was invented by Alexander Bell in 1876.
- In this sentence, we change the subject "Alexander Bell" to "the telephone," and the verb "invented" becomes "was invented" in its passive form. Note that "by Alexander Bell" is added to indicate the doer of the action.

4. The book will be discussed at the next conference.
- We change "they" to "the book" and "will discuss" to "will be discussed" in the passive form.

5. A very interesting article will be written by him.
- "He" is changed to "a very interesting article," and "will write" is transformed into "will be written."

6. All my money was spent on books last month.
- Here, "I" is changed to "all my money," and "spent" becomes "was spent."

7. You will be shown a new photo album by Linda.
- "Linda" remains the same, and "will show" is changed to "will be shown." Here, "you" is the object that will be shown the new photo album.

8. Many French films are shown on Japanese television.
- "They" becomes "many French films," and "show" is changed to "are shown."

9. Two cute kittens were brought home by the twins yesterday.
- "The twins" is changed to "two cute kittens," and "brought" becomes "were brought." The phrase "by the twins" is added to show who performed the action.

10. A taxi was called by Bill's friends half an hour ago.
- "Bill's friends" is changed to "a taxi," and "called" becomes "was called." "Half an hour ago" remains the same.

11. Paper is made from wood.
- "They" is changed to "paper," and "make" becomes "is made."

12. The book wasn't read yesterday.
- "They" is changed to "the book," and "didn't read" becomes "wasn't read."

13. All my pocket money was spent on books last week.
- Similar to the previous sentence, "I" is changed to "all my pocket money," and "spent" becomes "was spent."

14. The word should be written without mistakes.
- "You" is changed to "the word," and "should write" becomes "should be written."

15. Butter is made from milk.
- "They" is changed to "butter," and "make" becomes "is made."

16. The tickets for the play must be booked.
- "You" is changed to "the tickets for the play," and "must book" becomes "must be booked."

I hope this helps you understand the concept of changing sentences into passive voice, and you find it useful for your grammar test. If you have any further questions, feel free to ask!