2. The letter will be delivered by John.

3. The telephone was invented by Bell.

4. The photo was taken by my brother.

5. The new hospital will be opened.

6. The report was written by Mr Brown yesterday.

7. The streets are cleaned every day.

8. Our house is painted every four years.

9. The glass pieces are dried completely.

10. Trees and flowers will be planted in the school garden.

II.

2. It is simple to use the computer.

3. It's difficult to learn Spanish.

4. It is important to keebthe environment clean.

5. It is difficult to get a good job.

II.

2: It is simple to use the computer

3: It's difficult to learn Spanish.

4: It is important to keep the environment clean

5: It is difficult to get a good job