Change the following active sentences into passive form (The present simple tense) 1. Our country exports rice and sugar.............................................................. 2.We use a ruler to draw a straight line..................................................... 3. My father waters this flowers every moming.......................................... 4. Many people in the world speak English................................ 5. They don't eat bread at the weekend..................................... 6. Do they speak French and English in Canada..................................... 7. How many languages do they speak?.................................................. 8. Someone opens the door................................................................. 9. Someone sends an ambulance to Quang Trung school.................................... 10. They used this fans all day.............................................

`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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`1.` Rice and sugar are exported by our country .
`2.` A ruler is used to draw a straight line .
`3.` This flowers are watered by my father every morning .
`4.` English is spoken by many people in the world .
`5.` Bread is not eaten at the weekend .
`6.` Is French and English spoken in Canada `?`
`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 fans were used all day .

`-` Từ câu `1` đến câu `9` `-` Bị động hiện tại đơn : S(bị động) + is/am/are + V3/V_ed + O ...

`-` Câu `10` `-` Bị động quá khứ đơn : S(bị động) + was/were + V3/V_ed + O ...