13. rewrite these sentences in the passive form starting with the words given. 1. they serve hot meals in the staff canteen. - hot meals are served in the staff canteen. 2. the hr department sent an email to all employees - an email 3. someone stole the money during the night - the money 4. the department informed the staff about the decision. - the staff 5. we discuss salaries with employees individually. – salaries 6. he keeps the key to the safe in his desk. - the key to the safe