Fill in the correct form of sein for each pronoun.
I am in the office, and you are at home.
He is an engineer, and she is a doctor.
We are colleagues, and you all are students.
The boss is in the conference room, and the employees are in the office.
I am a project manager, and he is a programmer.
You are very hardworking, and we are also hardworking.
She is a secretary, and you (formal) are a consultant.
You all are employees here, and I am the leader.