Which part of the sentence is an adverbial dependent clause? when they arrived at the beach who had never seen the ocean before by the size of the foaming waves that rolled gracefully toward the shore

yes, because if hes blind not deaf

the main character of "the secret life of walter mitty" retreats into a false pretense as a means escape from his mundane reality -- this is a flagrant issue seen in societies abroad, typically found in young adults and it is robbing our youths of their childhood.

explanation:

a thesis -- a well developed, formal thesis is required to be one sentence long. there are many themes in "the secret life of walter mitty" and i had resolved to give you one of the simpler ones while still honing it with class.