Directions: Insert the appropriate Prepositions in the sentence:
He has a preference ______ tea ________ coffee.

The noun 'preference' takes the preposition 'for' when expressing a liking for something (e.g., preference for tea). When comparing it against another item, 'to' is commonly used after the preferred item to mark the benchmark or alternative (e.g., preference for tea to coffee). Hence, "preference for tea to coffee" is the grammatically accurate combination.