“All reimbursement requests must be submitted by Dec. 8th.”

You are responsible for processing employees' reimbursement requests at your company. You need for everyone to send their requests to you by December 8th. You write an e-mail to all the employees. After the introduction, it says:
All reimbursement requests must be submitted by Dec. 8th.
accounting,
deadline,
email,
formal,
must,
reimbursement,
requests,
submit,
work,
written English 

