Exercise 1. Rewrite these sentences in passive voice. 
1. They told that you were the best architect in this city.=> You

2. She supposes that the flowers were killed by frost.=> The flowers 

3. Why didn't you tell me about the changes of the schedule? => Why wasn't 

4. They promise that the performance will start on time. => The performance 

5. He recommends that we should stay at the city center. => It

6. We believed that Alice would pass the driving test. => It

7. The director notifies all the workers that they will have to work extra hard this month. 
=> All the workers 

8. How many trees have they cut down to build that fences? => How many trees 

9. Some people inform that the director is going to take a business trip to England.=>The director 

`1.` You were told to be the best architect in this city. 

`2.` The flowers are supposed to have been killed by frost. 

`3.` Why wasn't I told about the changes of the schedule? 

`4.` The performance is promised to start on time.  

`5.` It is recommended that we should stay at the city center.  

`6.` It was believed that Alice would pass the driving test.

`7.` All the workers are notified to have to work extra hard by the director this month.

`8.` How many trees have been cut down to build that fences?

`9.` The director is informed to be going to take a business trip to England.  

`=>` Câu bị động:

`-` Thì QKĐ: `(?)` (WH-word +) was/were (+ not) + S + V3/ed + (by O)?

`-` Thì HTHT: `(?)` (WH-word +) have/has (+ not) + S + been + V3/ed + (by O)?

`=>` Câu bị động "Kép": Một số động từ thường gặp trong câu bị động kép như: say, think, believe, understand, expect, know, consider, find, ...

`@ TH1:`

`-` Chủ động: S1 + V1 + that + S2 + V2

`->` Bị động:

`+` It is + V3/ed (V1) + that + S2 + V2 

`+` S2 + is/am/are + V3/ed (V1) + to + V-inf (V2) `->` Dùng khi V2 ở câu chủ động chia thì HTĐ/ TLĐ

`+` S2 + is/am/are + V3/ed (V1) + to have + V3/ed (V2) `->` Dùng khi V2 ở câu chủ động chia thì QKĐ/ HTHT

`@ TH2:`

`-` Chủ động: S1 + V1 + that + S2 + V2

`->` Bị động:

`+` It was + V3/ed (V1) + that + S2 + V2 

`+` S2 + was/were + V3/ed (V1) + to + V-inf (V2) `->` Dùng khi V2 ở câu chủ động chia thì QKĐ

`+` S2 + was/were + V3/ed (V1) + to have + V3/ed (V2) `->` Dùng khi V2 ở câu chủ động chia thì QKTD/ QKHT

1/I were told that you were the best architect in this city.
2/The flowers were supposed to be killed by frost.
3/Why wasn't the change of the schedule told to me?
4/The performance is promised to start on time.
5/It is recommended that we should stay at the city center.
6/It was believed that Alice would pass the driving test.
7/All the workers are notified that they will have to work extra hard this month.
8/How many trees are said to have been cut down to build that fences?
9/He director is informed to be going to take a business trip to England.
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