Final answer:
The word that completes the sentence is 'llevar'.
Step-by-step explanation:
The word that best completes the sentence is 'llevar'. In the sentence, it is mentioned that Rodrigo and Martha are going 'to' a place, so the verb 'llevar' which means 'to go to' or 'to take to' fits the context. Therefore, the sentence would be 'Rodrigo y Martha van a llevar Japón mañana.'
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