The supervisor checked the progress of each employee.
He reported the accident to his supervisor.
The supervisor told the staff to be careful.
He is responsible to his supervisor for safety.
I would like to discuss this matter with a supervisor.
The supervisor ordered us to follow the safety procedure.
My co-supervisor has suggested that I include a case study.
The supervisor instructed the staff to follow the safety rules.
She is allowed to use the lab only when a supervisor is present.
May I speak with your supervisor because I am not satisfied with this resolution.
Regular consultation with the supervisor will be done at each stage of the research.