Final answer:
The sentence 'Tiene mucho calor hoy' in Spanish is grammatically correct and translates to 'It is very hot today' in English.
Step-by-step explanation:
The sentence 'Tiene mucho calor hoy' is grammatically correct as written. This sentence translates to 'It is very hot today' in English. In Spanish, the subject 'Tiene' means 'it has' and 'mucho calor' means 'a lot of heat'. The word 'hoy' means 'today'. So the complete sentence means 'It has a lot of heat today' or 'It is very hot today'.
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