Answer:
The friend can email her the draft work then she can email it to the supervisor.
Step-by-step explanation:
Or send her friend her email credentials (a bit risky) and her friend will email the draft to the supervisor using her account on her behalf.
Or send an email to the supervisor with a carbon copy of her friend's email, then her friend can reply to the email with the draft work, but she will have to explain her situation to the supervisor