Rewrite the following sentences into the passive 1)the chef is preparing the food. 2)john writes the essay. 3)the editor hasn`t checked the article yet.

The food is being prepared by the chef.
The essay is written by John.
The article hasn’t been checked by the editor.

1). The food is being prepared by the chef.
2). The essay is written by John.
3). The article has been checked by the editor.