text: Is President Aguinaldo the first president of the Philippines?\n\n___\n\nQuestions are formed from sentences with nominals just as they are formed from sentences without.\n___\n\nJust want to clarify "president" is not the direct object of "is" as another answer indicates; rather, "president" is the subject complement (an adjective or nominal that follows a linking verb--"is"--and renames or modifies the subject).  Since "is" is an intransitive verb, it cannot take a direct object.