Take another look at the sentence:

Horatio tickled the pads of Samson's feet, blew in his ears, and __________, but the ancient German shepherd refused to leave the sofa for a walk in the rain.

The blank needs to begin with a simple past tense verb. You chose he even promised a liver-flavored cookie or two, which is a main clause and thus causes a parallelism error.

Before you continue, review the rules for parallel structure.

Go back to the sentence to try again.

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