VI. Change into the passive voice
1. You must hand in your compositions before Friday.
=> ...............................................................................................................
2. You should send for the doctor immediately.
=> ...............................................................................................................
3. They might postpone the excursion until Saturday.
=> ...............................................................................................................
4. They are going to announce the exam results tomorrow.
=> ...............................................................................................................
5. They should widen the road at this point.
=> ...............................................................................................................
6. An expert should check these machines regularly.
=> ...............................................................................................................
7. We’ll have to repair the roof before the rainy season comes.
=> ...............................................................................................................
8. They ought to white – wash the building for the celebration.
=> ...............................................................................................................
9. You must attach a birth certificate to the application.
=> ...............................................................................................................
10. You should inform the school of your change of address.
=> ...............................................................................................................
11. This boy broke my window yesterday.
=> ...............................................................................................................
12. People plant rice in those fields.
=> ...............................................................................................................
13. They have known him well
=> ...............................................................................................................
14. They shouldn’t cut the flowers in this garden
=> ...............................................................................................................
Câu bị động:
1. They ought to white-wash the building for the celebration
the building ought to be white-washed for the celebration
2. You must attach a birth certificate to the application
a birth certificate can be attached to the application
3. You should inform the school of your change of address
the school should be informed of your change of address
4. All students have to take the fina examination
the fina examination have to be taken by all students
5. You can obtain that information at the information desk
that information can be obtained at the information desk
6. you don't have to complete that assignment this week
that assignment doesn't have to be completed this week