Question

for most of my life, i did not understand what it meant to be a part of a team. i was training for the chicago marathon, and the long miles were difficult to complete, so i joined a running club. the members enthusiasm for running made the miles easier. when the big day arrived, we got together and ran the first few miles as a group, but then we lost one another in the crowd. at mile 20, one of my teammates came up behind me, and we finished the race together. sharing encouragement helped us to meet our goal of becoming marathoners. teamwork works! what type of phrase is \for running\? adjectival phrase what word does \for running\ modify? what does \for running\ add to the text enthusiasm miles easier

Explanation:

An adjectival phrase modifies a noun or pronoun. In the sentence "The members' enthusiasm for running made the miles easier", "for running" describes the type of enthusiasm, so it is an adjectival phrase modifying the noun "enthusiasm". It adds more detail about what the enthusiasm is directed towards.

Answer:

What type of phrase is "for running"? - adjectival phrase
What word does "for running" modify? - enthusiasm
What does "for running" add to the text? - more detail about the enthusiasm