Сопоставьте местоимения с глаголами: I speaks English well. You is for cutting things. He can help you. She want to read this book. It is a policeman. We need three disks. They work for IBM.
She speaks English well. It is for cutting things. I can help you. They want to read this book. He is a policeman. We need three disks You work for IBM.
А если "I work for IBM" то как?
тоже можно, там многое можно менять местами.