Exercise 1: Change the active into the passive.
1. Somebody cleans the room everyday.
The room .......................................................
2. They cancelled all the flights because of fog.
All the flights ........................................................
3. People do not use this road very often.
This road .................................
4. How do people learn languages?
How ...........................................
5. People advised us not to go out alone.
We ......................................................
6. They are going to build a supermarket next year.
A supermarket .................................................
7. She is using the computer at the moment.
The computer ......................................................
8. They are opening a new ring road round the city.
A new ring road ........................................................
9. They have built a big hospital which costs much money.
A big hospital ...........................................................
10.The girl did not give me the money.
I ..........................................................................
11.Nobody told me the story.
I ....................................................
12.About 30 million people are watching this program.
This program .........................................................
13.They are building some new houses down the street.
Some new houses .......................................................
14.They have moved nothing in your room.
Nothing .......................................................
15.People used oil-lamps years ago.
Oil-lamps .......................................................
16.When did they open that hospital?
When ...............................................................
17.The atmosphere protects the earth from harmful radiation from the sun.

The earth ...........................................................