I. Rewrite the sentences without changing their meaning, beginning with the words given.
1. People must not leave bicycles in the hall. (Passive voice)
( ........................................................................................................
2. The computer belongs to Mr.Long. Its screen is broken. (whose)
( .....................................................................................................
3.You must keep this room clean. (Passive voice)
( This room......................................................... ..........................
4. Someone will collect wastes. (Passive voice)
( Wastes ........................................................................................
5. The students may do this exercise in two weeks. (Passive voice)
( ...........................................................................................................
6. What was the name of the girl? Her mobile phone was stolen ? (whose)
( .........................................................................................................
7. The students may keep books for two weeks. (Passive voice)
( .............................................................................................................
8. What is the name of the girl? Her hair is green? (whose)
( .............................................................................................................
9.The teacher gave us many exercises. She teaches Chemistry. (who)
( .....................................................................................................
10. They haven’t cleaned the street this week (Passive voice)
( .................................................................................................