Since I had never been on a plane before, I was very nervous about the flight to Disney World. Phrase
Main Clause
Subordinates Clause

Answer and Explanation:

The Hiawatha myth describes him as a very relatable character for me and I believe that for most readers as well. That's because Hiawatha is presented in the myth as an intelligent, methodical leader and willing to face any challenge to protect and provoke the success of his people, even in the midst of personal difficulties and problems that cause a lot of pain in his soul, even in the face of enemies. That's because Hiawatha placed his responsibility above his personal life and we must often assume, a posture similar to his.