1: The waiter refilled my glass.
 My glass was refilled by the waiter.
2: My secretary will notify you next week.
 You will be notified by my secretary next week.
3: Is a student pilot flying that airplane?
 Is the airplane being flied by a student pilot ?
4: Alan’s knowledge about art dosen’t impress me.
 I am not impressed by Alan’s knowledge about art.
5: People throw away billions of cans every year all over the world.
Billions of cans are thrown every year all over the world.
6: D.E Hughes invented microphone in 1878.
 Microphone was invented by D.E Hughes in 1878.
7: Do people speak Spanish in Brazil?
 Is Spanish spoken in Brazil ?
8: Someone will list my name in the new telephone directory.

 My name will be listed in the new telephone directory.
9: A plumper is going to fix the leaky faucet.
The leaky faucet is going to be fixed by a plumper.
10: Someone has changed the name of this street.
 The name of this street has been changed .
11: Elias Howe invented the sewing machine in 1845.
 The sewing machine was invented by Elias Howe in 1845.
12: The librarian didn’t allow Tom to take those books home.
 Tom wasn’t allowed to take those books home by the librarian.
13: The teachers won’t teach knownledge on recycling tomorrow.
 Knownledge on redydling won’t be taught by the teacher tomorrow.

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