Final answer:
The sentence 'Tengo un libro grande' is correct. It means 'I have a big book' in English.
Step-by-step explanation:
The sentence 'Tengo un libro grande' is correct. It translates to 'I have a big book' in English. The sentence includes a subject pronoun ('yo') and a verb ('tener') conjugated in the first person singular. 'Un libro grande' means 'a big book' and shows the noun and adjective agreement.
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