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Answers to Exercise 1 :1. birds 2. window 3. bell 4. answer 5. door 6. violin 7. umbrella 8. pa rcels 9. race 10.blanketsAnswers to Exercise 2:1. am lying 2. laid 3. is laying 4. lay 5. laid 6. lay 7. is lying 8. laid 9. lay 10. are layingAnswers to Exercise 3:1. rose 2. raised 3. are raising 4. rose 5. is raising 6. is rising 7. raised 8. is rising 9. israising 10. roseAnswers to Exercise 4:1. are sitting 2. set 3. is sitting 4. are setting 5. sat 6. set 7. are sitting 8. set 9. issetting 10. satAnswers to Exercise 5:1. have set 2. have laid 3. have risen 4. have sat 5. have raised 6. has set 7. have lain 8.have laid 9. has sat 10. have raised 11. have risen 12. have lainAnswers to Exercise 6:1. I handed the student the book. 2. He wrote the twins a letter. 3. She made the girl ascarf. 4. I told the audience the story. 5. We paid the dentist the money. 6. He sent thedoctor a reply. 7. We offered the students the job. 8. She told her friends the news.Answers to Exercise 7:1. We sent a photograph to the reporters. 2. They mailed a postcard to the agency. 3. Ipaid the fee to the manager. 4. We sold the doughnuts to the students. 5. You read thestory to the teacher. 6. She mailed the material to the seamstress. 7. I sent a messageto the workers. 8. He offered the wine to his guest.CHAPTER 12. THE PASSIVE VOICE1. Use of the passive voiceAs explained in the preceding chapter, the Active Voice of a verb is used when thesubject of the verb refers to the person or thing performing the action described by theverb.In contrast, the Passive Voice of a verb is used when the subject of the verb refers tothe person or thing receiving the action described by the verb. Only a verb which cantake an object can be put into the Passive Voice.The Passive Voice is more commonly used in English than it is in other Europeanlanguages such as German or French. As well as being used in everyday English, thePassive Voice is used extensively in official documents and scientific papers.In the following examples, the verbs in the Passive Voice are underlined.e.g. The ball was struck by the boy.Gold has been found by the explorers.