Complete the office manager's furious (but grammatically flawless) email about the breakroom incident.

"Alright, confess! ________ my leftover pepperoni pizza from the fridge?"

The correct answer is Who stole.

When the question word (like "Who" or "What") is the subject of the sentence, we do not use the auxiliary verbs "do," "does," or "did." We simply use the main verb in its correct tense, just like in an affirmative statement!