Final answer:
The verb that should be used in the sentence is 'estamos'
Step-by-step explanation:
The correct verb to fill in the blank is estamos. The subject of the sentence, 'Jorge y yo', indicates a first-person plural subject, so we use the verb form 'estamos' which means 'we are' in English. The sentence then translates to 'Jorge and I are very friendly'.
Learn more about Spanish verbs