A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic of the original Olympic Games. It gives a broad overview of the history of the games without needing any prior context. It does not use any pronouns or definite articles that refer to previous information. Why other lines are not chosen? Paragraph 2 starts with "On June 23, 1894," which gives a specific date and context, so it cannot be the first. Paragraph 3 starts with "The idea was enthusiastically received," which refers back to a previous idea. Paragraph 4 starts with "The first Modern Olympics," which assumes knowledge of the Olympics. Paragraph 5 starts with "Americans captured," which also assumes prior knowledge.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the discussion about the Modern Olympics. It provides a summary of the results, which brings together the earlier points about the games and their significance.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): This pair connects because Paragraph 2 follows the historical context of Paragraph 1. It shows a logical order where the original games lead to the proposal of reviving them. This is a clear progression from the past to a significant event in the future.
• Pair 2 (Paragraph 2 → Paragraph 3): This pair connects because Paragraph 3 explains the result of the proposal made in Paragraph 2. The phrase "The idea was enthusiastically received" shows a cause and effect relationship, where the proposal leads to the birth of the Modern Olympics.
• Pair 3 (Paragraph 3 → Paragraph 4): This pair connects because Paragraph 4 provides specific details about the first Modern Olympics, which is a direct result of the idea mentioned in Paragraph 3. This shows a logical order from the birth of the Olympics to their first event.
• Pair 4 (Paragraph 4 → Paragraph 5): This pair connects because Paragraph 5 gives specific results from the first Modern Olympics mentioned in Paragraph 4. It shows the outcome of the events and continues the topic of the Olympics.