1→Complaints should be sent to the main office .

2.→The meeting had to be postponed because of illness.

3.→ A fire could have been caused by a short circuit.

4.→Next year's congress is going to be held in San Francisco.

5.→A fashion show will be held by the Sheraton Hotel this week.

6.→Further information can be obtained from the nearest post office.

7.→The oldest volumes from the library must not be removed.

VII. Read the sentence and write another sentence with the same meaning. 
Ex: We can solve the problem. 
→ The problem can be solved (by us). 
1. People should send their complaints to the main office. 
→Complaints should be sent to the main office.
2. They had to postpone the meeting because of illness. 
→The meeting had to be postponed by them because of illness.
3. A short circuit could cause a fire. 
→A fire could be caused by a short circuit
4. They are going to hold next year's convention in San Francisco.

→Next year's convention is going to be held by them in San Francisco
5. The Sheraton Hotel in Warsaw will hold a fashion show this week. 
→A fashion show will be held by The Sheraton Hotel in Warsaw this week
6. You can obtain further information from the nearest post office. 
→Further information can be obtained from the nearest post office
7. You must not remove the oldest volumes from the library. 
→The oldest volumes mustn't be removed from the library

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