bonjour, est ce quelqu’un pourrai m’aider car je ne comprend pas svp

I was surprised by the news article

Kim is fascinated by the story

I am often helped by Mary

The letter was opened by Jenny

I was asked by the teacher

The store is managed by me

A package was ordered by the client

These shirts were bought by my sister

We were bored by the professor's class

These answers were written by me

  Subject   +  be  + past participle + by +  object

The mouse    is             eaten             by     the cat

Subject + be + verb   +   object

The cat     is   eating    the mouse