Answer:
Fragment
Explanation:
Fragments are incomplete sentences. Fragments are pieces of sentences that have become disconnected from the main clause.
The phrase is "driving" because it's a verbs but acts as a noun
1)sprained
2)sport coat
3)frilly
4)substitute
5)arena
6)gym
7)goofy
8)Dalmatians
9)champion
10)Promenade