According to the context, the correct form of estar to complete the sentence is "están" .
The verb "estar" is used to speak of the state of the person or thing or its location in the place and is conjugated in the present simple indicative.
In the sentence "Ami y tú están en la oficina", "están" is the correct conjugation in the presente simple of the verb "estar" corresponding to the subject "ellos" (they).
Therefore, we can conclude that according to the context, the correct form of estar to complete the sentence is "están" .
Learn more about the verb "estar" here: https://brainly.com/question/19972797
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