Verb means the action of the sentence, the action going on is 'ate', so that is the verb.
Answer:
no its not an A u idiot. Its an A+
Explanation:
It shows the doer of the action.It comes before verb and indicates this action or work is done by it/him/her etc.Ex.Susan switched off the lights. Who switched off the lights? The answer is Susan (subject of the sentence)