Final answer:
The correct form of the verb in parentheses is 'miran'.
Step-by-step explanation:
The correct form of the verb in parentheses is miran. The subject of the sentence is amigos, which is plural, so the verb must also be in the plural form. Therefore, the correct conjugation of the verb mirar (to watch) in the third person plural is miran.
Learn more about Spanish verb conjugation