Chuyển các câu sau thành câu bị động: 1. Nothing can change my mind. 2. We can't make coffee with cold water. 3. Must pupils finish the exercise before five? 4. How could the thieves open this safe? 5. Staff mustn't use this machine after 6:30 p.m

` 1. ` My mind can't be changed

` - ` Bị động với can: S + can ( not ) + be + V ( 3 / ed ) + ( by O )

` 2. ` Coffee can't be made with cold water

` - ` Bị động với can: S + can ( not ) + be + V ( 3 / ed ) + ( by O )

` 3. ` Must the exercise be finished by the pupils before five?

` - ` Bị động với must: S + must + be + V ( 3 / ed ) + ( by O )

` 4. ` How could this safe be opened by the thieves?

` - ` Bị động với could: S + could + be + V ( 3 / ed ) + ( by O ) 

` 5. ` This machine mustn't be used after 6:30 o.m

` - ` Bị động với must: S + must + be + V ( 3 / ed ) + ( by O )

`#Zkj `

`1. ` My mind can't be changed.

`2. ` Coffee can't be made with cold water.

`3. ` Must the exercise be finished by the pupils before five?

`4. ` How could this safe be opened by the thieves?

`5. ` This machine musn't be used after `6:30 ` p.m.

`--- `

`@ ` Passive voice với Modal V`: `

`- ` Form`: ` Modal V`( `should, can, must, might, could...`)+ ` be`+ `Ved`/ `pii`+( `by O`) `