Ex 2:

1.English is spoken in many countries.

2.The original building was pulled down in 1965.

3.A cinema is a place where films were shown.

4.His salary is paid every month.

5.Paper was first to produce by the  Chinese in 105 AD.

6.The rooms were clean every day.

7.My car repaired last week.

8.The first alphabet was used in Syria about 3,500 years ago.

9.This house was build by my grandfather.

10.Chese and butter were make from milk.

Ex 3:

1.The cat was feed every day.

2.The room was decorated with flowers yesterday.

3.The Mona Lisa was painted by Leonardo Da Vinci.

4.A safe is used for storing valuable things.

5.This bottle of perfume was bought in France last year.

6.Some people were invited to his party last week.

7. Milk was produced by cows.

8.The room hasn't been tidy up yet.

9.Some trees were planted last month.

10.The Ao Dai was worn by VietNamese women for years 

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Ex2/

1. is spoken

2. was pulled

3. are shown

4. is paid

5. was first produced

6. are cleaned

7. was repaired

8. was used

9. was built

10. are made

Ex3/

1. The cat is fed every day.

2. The room was decorated with flower yesterday.

3. The Mona Lisa was painted by Leonardo Da Vinci.

4. A safe is used for storing valuable things.

5. This bottle of perfume was bought in France last year.

6. Some people was invited to his party last week.

7. Milk is produced by cows.

8. The room hasn't been tidied up yet.

9. Some trees were planted last month.

10. The Ao Dai has been worn by Vietnamese women for years.