Answer:
The problem is that I grew, but my dream did not.
Explanation:
Foreshadowing is a literary device in which the narrator gives the readers hints about what is going to happen later on in the story.
Internal conflict is an internal struggled going on within a character.
The sentence that foreshadows an internal conflict in the given sentence is: The problem is that I grew, but my dream did not. The narrator is going through a struggle - he grew, he changed, but his dream stayed the same. This struggle is explored in the rest of the passage.
