filling a vacancy, substitution / person who fills a vacancy

fill a vacancy

hire

person working for someone else, employee

to bury / to fill up

cover, bury, submerge

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

(business) a company