El sábado ustedes __ a la playa para nadar y tomar el sol
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Answer: El sábado ustedes VAN a la playa para nadar y tomar el sol.
This is complete sentence using the present tense:
El sábado ustedes van a la playa para nadar y tomar el sol.
In this exercise, you have to choose the best option to complete the sentence. In this case, van is the only verb that fits because of its person and number, which is third person plural form. The verb is conjugated in the simple present tense.
The Spanish simple present tense (''presente del indicativo'' in Spanish) is used to talk about habitual situations, routines, universal truths, facts and things happening now or in the near future.
Chekc more information about the present tense here https://brainly.com/question/25856028
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