who's driving that truck
who drive that truck
pro:rel n:gerund adv n
who's driving that truck ?
h uː z WORD_BOUNDARY d ɹ aɪ v ɪ ŋ WORD_BOUNDARY ð æ t WORD_BOUNDARY t ɹ ʌ k WORD_BOUNDARY
w h o ' s WORD_BOUNDARY d r i v i n g WORD_BOUNDARY t h a t WORD_BOUNDARY t r u c k WORD_BOUNDARY