$1$. A textbook will be published by that company next year.

$→$ S1 $+$ will be $+$ Ved/ cột 3 $+$ by $+$ S2.

$2$. These postcards were sent to us by our friends.

$→$ S1 $+$ was/were $+$ Ved/ cột 3 $+$ by $+$ S2

$3$. This church was built in 1973

$→$ S1 $+$ was/were $+$ Ved/ cột 3

$4$. Many dificult questions were asked by them

$→$ S1 $+$ was/were $+$ Ved/ cột 3 $+$ by $+$ S2

$5$. This room hasn't been used for ages 

$→$ S1 $+$ have/has (NOT) $+$ been $+$ Ved/ cột 3

$6$. A special edition for children has been written by the author

$→$ S1 $+$ have/has (NOT) $+$ been $+$ Ved/ cột 3 $+$ by $+$ S2

$-$ author (n): tác giả

$7$. Poems were written by Maria at the time.

$→$ S1 $+$ was/were $+$ Ved/ cột 3 $+$ by $+$ S2

$-$ poem (n): bài thơ

$8$. People shouldn't be allowed to park there by the police.

$→$ S1 $+$ should (NOT) $+$ be $+$ Ved/ cột 3 $+$ by $+$ S2

$9$. Tom Cruise is said to be the richest movie star.

Câu 9 mình ko rõ ạ bạn thông cảm

 $@Bão$

1. A textbook will be published by that company next year.

2. These postcards are sent to us by our friends.

3. This church was built by them in 1973.

4. Many difficult questions were asked me by them.

5. This room hasn't been used for ages.

6. A special edition has been written for children by the author.

7. Poems were being written by Maria at that time.

8. Park shouldn't be allowed people to by the police.

9. Tom Cruise is said to be the richest movie star.

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=> Bị động TLĐ: S + will be + VpII + (by O)

=> Bị động HTĐ: S + is/am/are + VpII + (by O)

=> Bị động QKĐ: S + was/were + VpII + (by O)

=> Bị động HTHT: S + have/has + been + VpII + (by O)

=> Bị động QKTD: S + was/were + being + VpII + (by O)

=> Bị động với should: S + should (not) + be + VpII + (by O)

=> Bị động khách quan ( không lệch thì ): S + is/am/are + said + to V