A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it gives a clear warning about accepting a university place. It introduces the main topic of visiting the campus before making a decision. This follows the rule of Topic Sentence. Why other lines are not chosen? The other paragraphs are not chosen because they do not stand alone. For example, Paragraph 2 starts with 'The feel you get...' which uses 'the' and refers back to ideas. Paragraph 3 starts with 'Do not become...' which is a warning but does not introduce the topic. Paragraph 4 starts with 'And, when you do visit...' which is a continuation and not independent.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it gives final advice on visiting. It wraps up the discussion by suggesting what to do when you visit. This follows the rule of Conclusive Words as it provides a clear recommendation.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects with Paragraph 1 because it explains why visiting is important. It shows the difference between what you think and what you find out. This follows the Broader to Specific Strategy.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects with Paragraph 2 because it warns about the consequences of not visiting. It shows a cause and effect relationship. If you do not visit, you may choose the wrong place.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects with Paragraph 3 because it gives advice on what to do when you visit. It follows the Logical Order as it suggests actions to avoid the problem mentioned in Paragraph 3.