Here is the sentence:

When Mom __________ out the kitchen rug, dog hair, bread crumbs, coffee grounds, and spaghetti noodles flew through the air and dusted the sidewalk.

The blank requires the past tense of shake, an irregular verb. You chose shook, the correct form. Nice work, grammar brain!

Verb Simple Present Simple Past Past Participle
shake shake(s) shook shaken

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