Render the sentences into the passive voice wherever possible: 1. a friend of his has shown me an interesting magazine. 2. one uses chalk for writing on the blackboard. 3. i shall finish my work about seven o'clock. 4. somebody has opened the door. 5. he will introduce me to his friends. 6. they did not turn off the light. 7. by the middle of autumn we had planted all the trees. 8. has anybody explained the rules of the game to you? 9. we were looking at the man with great surprise. 10. everybody laughed at this funny animal.
2. Chalk is used by one for writing on the blackboard.
3. My work shall be finished by me about seven o'clock.
4. The door has been opened by somebody.
5. I will be introduced to his friends by him.
6. The light wasn't turned off by them.
7. All the trees had been planted by us by the middle of autumn.
8. Have the rules of the game been explained to you by anybody? (Have you been explained the rules of the game by anybody?)
9. The man was being looked at with great surprise by us.
10. That funny animal was laughed at by everybody.