El detective ESTABA feliz porque capturó el criminal famoso.
Answer : in Spanish: los papeles
Explanation : papeles is the plural masculine subject , so its article must be plural masculine too.
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I think estufa makes more sense, because there are usually stoves in kitchens, as opposed to sofas and cars, and it's a better answer then a place to sit down.
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He was a Venezuelan military leader who was instrumental in the revolutions against the Spanish empire