5-7 предложений на правило passive voice? ребят,заранеее огромное спасибо)

John is helped by Mary.

The office is cleaned every day.

This bookstore was built two years ago.

This parcel has been brought by the courier.

The car is being washed.

The newspapers are sold here.

The lecture is being read here.

The house was built.

The key has been lost.

The coat will be brought.

Bread is eaten every day. 

The letter was received yesterday.