1) How have you changed over the last five years ?
2) What other jobs have you applied recently ?
3) (il manque le participe passé)
4) What kind of people have you worked with ?
5) What sort of bosses have you had ?
=> have est un verbe irrégulier : have, had,had
6) What sort of problems have you dealt with ?
=> deal (ici “avoir affaire à”) est un verbe irrégulier : deal,dealt,dealt
7) What have you done that shows your leadership?
=> do (“faire”) est aussi un verbe irrégulier : do, did, done