Final answer:
The conversation is about Roberto's suggestion to go to the cinema after school, and Eric agrees by saying "Claro, quiero ir!".
Step-by-step explanation:
Roberto suggests going to the cinema after school, and Eric responds to his suggestion. To complete the conversation, Eric could say "Claro, quiero ir!" which means "Sure, I want to go!". This option reflects Eric's agreement with Roberto's suggestion to go to the cinema.
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