Respuesta :
The sentence can be completed using the word 'are' as two subjects are indicated making it plural.
What is a verb?
A verb is a word that is used to show that the subject of the sentence is performing the task, and hence depicts the action of the occurrence of the event.
Are is a verb that is used to show the relationship between the cat and the dog. As the subjects of the sentence, cat and dog are plurals the verb used 'are' will also be a plural word.
Therefore, the correct blank is 'are.'
Learn more about verbs here:
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