The sentence needs an adjective to describe the primary flavor of the punch. 'Dominant' is the suitable word to convey that strawberry is the most noticeable among the various fruit juices.
The sentence requires an adjective to describe the predominant flavor of the punch, even though it is made up of different fruit juices. In this context, the blank should be filled with an adjective that conveys the idea that strawberry is the main or most noticeable flavor in the mixture. Therefore, the sentence should read:
'Although the delicious punch is made of a mixture of fruit juices, the dominant flavor is strawberry.'
The use of the word dominant here suggests that among all the flavors present, strawberry stands out as the primary one that can be tasted in the punch. This adjective is commonly used to indicate that one aspect of something is more pronounced or noticeable than others.
The probable question may be:
What adjective would best convey that strawberry is the main flavor in the punch, despite it being a blend of various fruit juices?