I still don't understand why this is incorrect:
Ella tiene dos casas y los dos están en Miami.She has two houses and both are in Miami.
I still don't understand why this is incorrect:
Ella tiene dos casas y los dos están en Miami.She has two houses and both are in Miami.
Hola Lizzie
You need to match the gender; as it is referring to "casas" you need the feminine article: "las dos" (not los dos).
I hope this clarifies it.
Saludos
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