Why Obturation Endodontics Is The Hardest Part Of The Job
Feb 12, 2018 · In the sentence "Why is this here?", is "why" an adverb? What part of speech is "why?" I think it modifies the verb "is", so I think it is an adverb.
SOLUTION: Lec 6 diagnosis in endodontics part 1 - Studypool
