Какой предлог используется в Passive Voice, если необходимо указать, кем было совершено действие?​

форма пассивного  стана

действие+пассивный стан+ кем было сделано действие

Coffee is produced in Brazil.

The test was written by him.

Telephone was invented by him.

Train to Busan was direted by Steve Jobs.

By, используется by

By Pushkin