Fill in as in the example: i am not a student. i'm not a student. they chairs. they chairs. we english. we english. she ten years old. she ten years old. it an orange. it an orange. you from london. you from london.

Здесь нужно просто сделать отрицания. В первом случае - несокращенное, во втором - сокращенное.
They are not chairs. They're not chairs.
We are not English. We're not English.
She is not ten years old. She's not ten years old.
It is not an orange. It's not an orange.
You are not from London. You're not from London.

They are
we are
she is
it is
you are