SPECIAL PASSIVE VOICE (bị động đặc biệt)

SPECIAL PASSIVE VOICE (bị động đặc biệt)
1. They told me that you were the best architect in this city.
=>It 

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

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

4. That officer announced that the meeting was delayed until next week.
=>It
=>The meeting

5. He discovered that this cotton was grown in Egypt.
=>It
=>This contton

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

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