Here is the item:
Removing the dirty sock from her granddaughter's mouth, Jeanne __________ Abigail in the crib and chased after Savannah, the family's new kitten, who was using the couch as a scratching post. Babies of any species, Jeanne knew, required constant supervision.

Jeanne put her granddaughter in the crib. Thus, you need a form of lay. Since the sentence is past tense, you need the simple past form.

You chose the correct form from the table below. Good job!

Infinitive Definition Simple
Present
Simple
Past
Past
Participle
Present
Participle
to lay to put something down lay(s) laid laid laying
to lie to rest or recline lie(s) lay lain lying

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