Final answer:
The sentence 'Yo conozco la florería de Rosa' is grammatically correct in Spanish.
Step-by-step explanation:
The given sentence 'Yo conozco la florería de Rosa' is grammatically correct. In Spanish, the subject pronoun 'yo' means 'I'. The verb 'conozco' is in the first person singular form of the present tense, meaning 'I know'. The rest of the sentence translates to 'the flower shop of Rosa'.
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