Chuyển nhg câu sau sang câu bị động

` 1`. This dictionary is used by people very often 

` 2`. Mary was given this present by them an hour ago

` 3`. This telephone has been prepaired by someone

` 4`. The project must be finished on time

` 5`. The flight had been ed because of the bad weather

` 6`. The 22^nd SEA GAME was held in Vietnam in 2003

` 7`. The president is interviewed on the TV at the moment

` 8`. The post is delivered by them twice a day

` 9`. This letter will be opened by her

` 10`. The traffic lights were being repairing by them at 10 o'clock yesterday

Công thức bị động : 

- HTĐ/HTTD/QKĐ : S + tobe + Ved/V3 + (by sb) ...

- QKTD : S + was/were + being + V-ing + (by sb) ...

- TLĐ : S + will be + Ved/V3 + ...

- HTHT : S + has/have + been + Ved/V3

- QKHT : S + had been + Ved/V3 ...

` color{black}{@blue}`

` 1. ` This dictionary is use by people very often

` - ` HTD: S + V ( s / es )

` - ` Bị động HTD: S + tobe + V ( 3 / ed ) + ( by O )

` 2. ` Mary was given this present by theb an hour ago

` - ` QKD: S + V ( 2 / ed )

` - ` Bị động QKD: S + was / were + V ( 3 / ed ) + ( by O )

` 3. ` This telephone has been repaired by someone

` - ` HTHT: S + have / has + V ( 3 / ed )

` - ` Bị động HTHT: S + have / has + been + V ( 3 / ed ) + ( by O )

` 4. ` The project must be finished by us on time

` - ` Câu khiếm khuyết: S + must / should / ought to / may ... + V - inf

` - ` Bị động câu khiếm khuyết: S + must / should / ought to / may ... + be + V ( 3 / ed ) + ( by O )

` 5. ` The flight had been cancled because of the bad weather by them

` - ` QKHT: S + had + V ( 3 / ed )

` - ` Bị động QKHT: S + had + been + V ( 3 / ed ) + ( by O )

` - ` Mệnh đề + because of + ( cụm ) danh từ / V - ing

` 7. ` The president is being interviewed by them on the TV at the moment

` - ` HTTD: S + tobe + V - ing

` - ` Bị động HTTD: S + tobe + being + V ( 3 / ed ) + ( by O )

` 8. ` The post is delivered by them twice a day

` - ` HTD: S + V ( s / es )

` - ` Bị động HTD: S + tobe + V ( 3 / ed ) + ( by O )

` 9. ` This letter will be opened by her

` - ` TLD: S + will + V - inf

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

` 10. ` The traffic lights were being repaired by them at ` 10 ` o'clock yesterday

` - ` QKTD: S + was / were + V - ing

` - ` Bị động QKTD: S + was / were + V ( 3 / ed ) + ( by O )

` @ ` Note: Trong các câu bị động, by O có thể không cần thiết

` @ ` ` kyu `