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#3 from where? i just see your question. can i have some context please?
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los comportamientos son diferentes de las dos personas
Answer:
Las novelas de amor <u>son/están</u> sentimentales.
The relationship between Don Quixote and Sancho Panza is an important one while Don Quixote represents illusion,Sancho Panza represent reality. They complement consists of a mind and a body