1. Rice and sugar are exported by our country.
2. A ruler is used to draw a straight line.
3. These flowers are watered by my father every morning.
4. English is spoken by many people in the world.
5. Bread is not eaten by them at the weekend.
6. Is French and English spoken in Canada by them?
7. How many languages are spoken by them?
8. The door is opened by someone.
9. An ambulance is sent to Quang Trung school by someone.
10. This fan was used all day by them.
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* Bị động HTĐ: S + am/is/are + $$P_{II}$$ + (By O)
* Bị động QKĐ: S + was/were + $$P_{II}$$ + (By O)
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