Fill - in- blank the Preposition
the Legendary pony Express rode its way American history
through American history.
the Legendary pony Express rode its way into American history
The preposition to fill in the blank is "through."
To figure out the answer, you can start by rereading the sentence and identifying any words or phrases that indicate movement or a sense of progressing from one point to another. In this case, the phrase "rode its way" suggests that the Pony Express made its way or traveled through American history. Therefore, the preposition "through" fits best in the blank.