For the sentence below, determine how the word in italics is used. is it a relative pronoun, a subordinating conjunction, or neither? it was mr. adams who told me (about) the fire drill.

The correct answer is NEITHER.

It is not a relative pronoun, because it is not a pronoun but a preposition. And it is not a subordinating conjunction as it is not subordinating a clause into another clause. It is not even introducing a clause.

The phrase "about the fire drill" is a necessary complement to the verb TELL. This verb (in this case in the Simple Past) selects two objects: one necessarily is the person to whom the action is directed (in this case "me") -better called Indirect Object pr Recipient of the action- and the other one is the Direct Object, that is to say the thing being told (in this case "about the fire drill").

they should gives us more chances to make friend and do stupid things