Which one of these sentences can change into an interrupting appositive phrase?

Question

I start to crave a break. My legs are progressively giving out, and it has been a long day; fortunately, I notice a clearing with black pavement up ahead. The highway we drove on to come to the campsite I realize. My cousin turns to look at me, and I look at her. We both laugh a relieved laugh, and we take the shoulder of the highway, pushing off on our bikes to ride back to camp.

Answer 1

The sentence that could change into an interrupting appositive phrase is: "The highway we drove on to come to the campsite I realize."

You could rephrase it as: "The highway, which we drove on to come to the campsite, I realize."

However, this sentence feels incomplete as written because it lacks a main verb and structure that is typically found in a complete sentence. If you're looking for a clearer rephrasing, you might consider: "The highway, the one we drove on to come to the campsite, is what I realize." This format clearly uses the appositive "the one we drove on to come to the campsite" to provide additional information about "the highway."