Question

the bees and ladybugs celebrated spring _______ the fragrant flowers.

Answer 1

The answer is -"WITH"..

Answer 2

The bees and ladybugs celebrated spring with the fragrant flowers.

It is one of the most important prepositions used to give a proper meaning to the sentence.

The prepositions are the set of words which indicates the location and also remaining bon between a pronoun or noun and remaining parts of sentence.  

There are lots of prepositions available in English grammar that includes, near, on top off, beside, in and more.