Take another look at the sentence:
To avoid being stung, Kasey spilled a small amount of soda on the picnic table; the wasps that flew around the campsite left him alone and drunk from the sweet puddle.
The third verb, drunk, is incorrect. This sentence requires the simple past. Drank is the right form.
|Verb||Simple Present||Simple Past||Past Participle|
Left, the verb you chose, is perfectly correct. Before you continue, review the rules for irregular verbs.