Answer: está; están
Sentence: Claudio <em><u>está</u></em> mojado. Las toallas <em><u>están</u></em> secas para Claudio.
Translation: Claudio is wet. The towels are dry for Claudio.
Explanation:
The subject in the first sentence is "Claudio", that is a first-person singular, so the verb must be conjugated in this form: Él <u><em>está</em></u> mojado.
The subject in the second sentence is "toallas", that is a first-person in the plural, so the verb must be conjugated in this form: Ellas <em><u>están</u></em> secas.
<h2><em>Spymore</em></h2>