Chalk is used for writing on the blackboard.
This consonant is pronounced with aspiration.
This hospital was built two years ago.
The light wasn`t turned off.
All the cakes were eaten yesterday by them.
This work shall be finished in time.
Where the new school will be built?
The door has been left opened by somebody.
The telegram had been sent before his brother returned.
The book will have been read by them by then.
His novels are being read by people all over the world.