Passive voice (Present Simple)

Pencils (a)   (make) from wood and carbon.

The letter (a)   (print) on fine paper.

Whales (a)   (see) in the Pacific Ocean.

This song (a)   (sing) during the holidays.

Most houses (a)   (build) by hand.

The site (a)   (photograph) by famous photographers.

Some face paint (a)   (make) from plants and berries.

The tickets (a)   (sell) at the entrance to the theatre.

All these books (a)   (sign) by the author.

The art gallery (a)   (visit) by thousands of people each year.