Fill in the blank with the Spanish word that best completes the following sentence. Madrid es una gran ________.

“Madrid es una gran ciudad” means “Madrid is a big city.” The word “ciudad” means “city” and is feminine, so it agrees with “gran” in this sentence. “Teatro” means “theater,” “lago” means “lake,” and “el árbol” means “the tree,” so those choices do not fit as well.

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