Final answer:
The correct answer is 'his', making the sentence 'The coat of his is very good.' This correct use of 'his' is due to its function as a possessive pronoun indicating ownership.
Step-by-step explanation:
The correct choice in this case is 'his'. So the sentence is, 'The coat of his is very good.' The word 'his' is a possessive pronoun and should be used before a noun to show that something belongs to 'him'.
For example, if we are talking about a man's coat, we don't say 'the coat of him'. The correct structure is 'his coat' or 'the coat of his'.
It's important to understand the difference between subject pronouns (like 'he') and possessive pronouns (like 'his'). Subject pronouns are used as the subject of a sentence, while possessive pronouns show that something belongs to the subject.
Learn more about Pronoun Usage