Final answer:
The Spanish word that best completes the sentence is 'banquero' meaning 'banker'.
Step-by-step explanation:
When you need money, you talk to the banker. So, the Spanish word that best completes the sentence is banquero. In this sentence, the speaker is referring to someone they talk to when they need money. Since we are given options like writer, painter, mechanic, and banker, the most appropriate choice is bank.
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