A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main idea. It talks about many students in a tutorial. This is a general statement that does not need other sentences for context. It sets the stage for the topic of the tutorial. Why other lines are not chosen? The other paragraphs are not chosen because they do not stand alone. For example, 'Why is that?' starts with a question and needs more context. 'Maybe they do not know the purpose of a tutorial.' uses 'they' which refers back to students. 'They think it is like a small lecture...' also uses 'they' and needs context. 'Even if students do know...' starts with 'Even if' which is a conjunction and needs more information.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the discussion. It gives a final thought about why students might not speak in tutorials. It summarizes the ideas presented in the earlier paragraphs.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects with Paragraph 1 because it asks a question about the statement in Paragraph 1. This is a logical order because the first paragraph gives a fact, and the second paragraph asks for an explanation.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects with Paragraph 2 because it gives a possible answer to the question in Paragraph 2. This shows a logical flow from a question to a possible reason.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects with Paragraph 3 because it explains what students might think about tutorials. This shows a clear connection from a possible lack of understanding to a specific thought.
• Pair 4 (Paragraph 4 → Paragraph 5): Paragraph 5 connects with Paragraph 4 because it adds more reasons why students might not speak in tutorials. This shows a logical order from one reason to other possible reasons.