How should I approach this reading question type?

First, identify the core claim of the text. Look for transition words like 'however' or 'furthermore' which signal changes in the author's logic. Then, match the evidence directly to the options provided.

What is the common trap in wrong answers for this category?

The most common trap is 'extreme language' (e.g., 'always', 'never') or 'unsupported inferences' that go beyond what is explicitly stated in the provided text snippet.

Why is the correct answer better than the close alternatives?

The correct answer usually captures the most direct and necessary evidence from the text, whereas alternatives often focus on minor details or distort the author's primary subject.

Set 7: Form, Structure & Sense (Intermediate)

Explanation

Answer: A

PASSAGE

Researchers have observed that the phenomenon, first theorized in 1905 but not experimentally confirmed until _______ has since been observed in numerous laboratory settings worldwide.

Which choice completes the text so that it conforms to the conventions of Standard English?

A. 2012,✓ Correct

B. 2012;

C. 2012

D. 2012:

Detailed Answer Explanation

[Variation 3] This question tests your understanding of sentence function and text organization. The parenthetical phrase 'first theorized in 1905 but not experimentally confirmed until 2012' is closed with a comma before the main verb 'has since been observed.' Each sentence in a well-constructed text serves a specific purpose. Consider what role this sentence plays in the argument: does it introduce, support, contrast, or conclude an idea? Understanding why an author includes specific sentences helps you grasp the overall argument. Each sentence should serve a clear purpose: introducing ideas, providing evidence, acknowledging counterarguments, or drawing conclusions. Identify the role to understand the structure.

Key Evidence:

• "The phenomenon, first theorized in 1905 but not experimentally confirmed until"

• "has since been observed"

Why others are wrong: D (A colon doesn't fit for closing a parenthetical phrase.), B (A semicolon is too strong for closing a parenthetical phrase.), C (Missing punctuation fails to close the parenthetical phrase.).

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