Take another look at the sentence:

Miguel bursted out laughing when he saw that Rey, his ferocious Chihuahua, had bitten the seat of Julio's jeans and hung on as Julio danced around the kitchen, trying to shake off the little dog.

The first verb, bursted, is incorrect. You cannot add an ed to the end of the simple past.

The chart below shows the correct forms.

Verb Simple Present Simple Past Past Participle
burst burst(s) burst burst

Had bitten, the verb you chose, is perfectly correct. Before you continue, review the rules for irregular verbs.

Try again to become a champion!

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