Come on seriously, Why do YOU have a passion and curiosity to become a pharmacist? Call me crazy but I think this is something you answer on your own. I have some reason passioniate answers you could use only if you reference me during the interview, "SDN member Idesiretosling told me to say....." JK
Try and go back to the beginning, why did you go to the shadow or take the job, tell them where the passion came from.