Final answer:
The best Spanish word to complete the sentence is 'ese'.
Step-by-step explanation:
The best Spanish word to complete the sentence is 'ese'. The word 'ese' is the masculine singular form of 'that' in Spanish, and it agrees with the noun 'plate' (plato) in gender and number. For example, you can say 'Necesito ese plato' to mean 'I need that plate.'
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