II.Change these sentences into the passive voice:
1. People spend a lot of money on advertising everyday.
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2. They can’t make tea with cold water.
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3. Students are doing a lot of work.
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4. The mailman is delivering the mail now.
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5. The teacher is going to tell a story.
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6. They rang the church bell as a flood warning.
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7. Luckily for me, they didn’t call my name.
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8. The children looked at the woman with a red hat.
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9. Somebody has taken some of my books away.
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10. They have provided the victims of the flood with food and clothing.
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11. The chief engineer was instructing all the workers of the plant.
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12. I knew that they had told him of the meeting.
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13. They will hold the meeting before May Day.
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14. They may use this room for the classroom.
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15. You should open the wine about three hours before you use it.
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16. You must not hammer nails into the wall without permission.
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17. People must not leave bicycles in the hall.
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18. They used to start these engines by hand.
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19. No one can do anything unless someone gives more information.
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20. Why didn’t they mend the roof before it fell in?
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