Answer:
The best example of foreshadowing in The Great Gatsby is the excerpt: "he stretched out his arms toward the dark water in a curious way, and, far as I was from him, I could have sworn he was trembling. Involuntarily I glanced seaward- and distinguished nothing except a single green light, minute and far away, that might have been the end of a dock. When I looked once more for Gatsby he had vanished, and I was alone again in the unquiet darkness."
Step-by-step explanation:
This passage foreshadows the mysterious and enigmatic nature of Gatsby, as well as the connection between him and the green light, which symbolizes his longing for Daisy. The description of Gatsby's disappearance adds to the sense of intrigue and anticipation in the story.