Answer:
The answer would be bring.
Step-by-step explanation:
A verb is an action, not like nouns or adjectives and adverbs. Picnic is out because it's the noun and towel is out because it's an intransitive verb. That leaves your, with, you, on, and the. 'The' is the definite article and you is a personal pronoun. With is a preposition and your is a pronoun too but a possessive adj. form and that leaves just on. It is not one thing though, but three, a preposition, adjective, and an adverb. Hope this helps!